"tetrad" meaning in All languages combined

See tetrad on Wiktionary

Noun [English]

IPA: /ˈtɛtɹæd/ [General-American, Received-Pronunciation] Audio: LL-Q1860 (eng)-Vealhurl-tetrad.wav [Southern-England] Forms: tetrads [plural]
Etymology: From Ancient Greek τετράς (tetrás), analysable as tetra- + -ad. Etymology templates: {{der|en|grc|τετράς}} Ancient Greek τετράς (tetrás), {{confix|en|tetra|ad}} tetra- + -ad Head templates: {{en-noun}} tetrad (plural tetrads)
  1. A group of four things. Categories (topical): Four Synonyms: foursome, quartet, quartet
    Sense id: en-tetrad-en-noun-LGkFVJwi Disambiguation of Four: 17 17 14 17 10 15 11
  2. (biology) Two pairs of sister chromatids (a dyad pair) aligned in a certain way and often on the equatorial plane during the meiosis process. Categories (topical): Biology, Four
    Sense id: en-tetrad-en-noun-WnpM3z79 Disambiguation of Four: 17 17 14 17 10 15 11 Categories (other): English entries with incorrect language header, English entries with topic categories using raw markup, English terms prefixed with tetra- Disambiguation of English entries with incorrect language header: 1 27 16 23 6 19 8 Disambiguation of English entries with topic categories using raw markup: 2 25 15 26 7 17 8 Disambiguation of English terms prefixed with tetra-: 9 22 15 22 8 13 10 Topics: biology, natural-sciences
  3. (biology) A group of four haploid and immature pollen grains in tetrahedral fashion produced by meiotic microsporogenesis. Categories (topical): Biology, Four
    Sense id: en-tetrad-en-noun-wPIfpMMi Disambiguation of Four: 17 17 14 17 10 15 11 Categories (other): English entries with incorrect language header, English entries with topic categories using raw markup, English terms prefixed with tetra- Disambiguation of English entries with incorrect language header: 1 27 16 23 6 19 8 Disambiguation of English entries with topic categories using raw markup: 2 25 15 26 7 17 8 Disambiguation of English terms prefixed with tetra-: 9 22 15 22 8 13 10 Topics: biology, natural-sciences
  4. (cartography) A unit of land area of two by two (that is, four) square kilometres. Categories (topical): Cartography, Four
    Sense id: en-tetrad-en-noun-LaJmMLEd Disambiguation of Four: 17 17 14 17 10 15 11 Categories (other): English entries with incorrect language header, English entries with topic categories using raw markup, English terms prefixed with tetra-, English terms suffixed with -ad Disambiguation of English entries with incorrect language header: 1 27 16 23 6 19 8 Disambiguation of English entries with topic categories using raw markup: 2 25 15 26 7 17 8 Disambiguation of English terms prefixed with tetra-: 9 22 15 22 8 13 10 Disambiguation of English terms suffixed with -ad: 4 23 15 30 5 15 8 Topics: cartography, geography, natural-sciences
  5. (chemistry) A tetravalent atom or radical. Categories (topical): Chemistry, Four
    Sense id: en-tetrad-en-noun-hFX7MgCe Disambiguation of Four: 17 17 14 17 10 15 11 Topics: chemistry, natural-sciences, physical-sciences
  6. (mathematics) A group of four basis vectors for a four-dimensional manifold in differential geometry. Categories (topical): Mathematics, Four
    Sense id: en-tetrad-en-noun-g8lM4AXW Disambiguation of Four: 17 17 14 17 10 15 11 Categories (other): English entries with incorrect language header, English entries with topic categories using raw markup, English terms prefixed with tetra- Disambiguation of English entries with incorrect language header: 1 27 16 23 6 19 8 Disambiguation of English entries with topic categories using raw markup: 2 25 15 26 7 17 8 Disambiguation of English terms prefixed with tetra-: 9 22 15 22 8 13 10 Topics: mathematics, sciences
  7. (music) A chord comprised of four notes; a tetrachord. Categories (topical): Music, Four
    Sense id: en-tetrad-en-noun-YEBx5njm Disambiguation of Four: 17 17 14 17 10 15 11 Categories (other): English terms prefixed with tetra- Disambiguation of English terms prefixed with tetra-: 9 22 15 22 8 13 10 Topics: entertainment, lifestyle, music
The following are not (yet) sense-disambiguated
Derived forms: tetrad of Fallot, tetradic Translations (Translations): четворка (četvorka) [feminine] (Bulgarian), tetradi (Finnish), bivalentti (Finnish), tétrade [feminine] (French), Tetrade (German), τετράδα (tetráda) [feminine] (Greek), tetrado (Ido), tetrade [feminine] (Italian), тетрада (tetrada) [feminine] (Russian), tétrada [feminine] (Spanish)
Coordinate_terms: duad, dyad, triad, pentad, hexad, hebdomad, heptad, ogdoad, octad, ennead, nonad, decad, decade, hendecad, dodecad, duodecade, chiliad Coordinate_terms (group): monad Disambiguation of 'group': 37 0 31 0 0 32 0 Disambiguation of 'Translations': 1 28 16 24 4 19 7

Inflected forms

Download JSON data for tetrad meaning in All languages combined (11.6kB)

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  "coordinate_terms": [
    {
      "_dis1": "37 0 31 0 0 32 0",
      "sense": "group",
      "word": "monad"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "duad"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "dyad"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "triad"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "pentad"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "hexad"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "hebdomad"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "heptad"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "ogdoad"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "octad"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "ennead"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "nonad"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "decad"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "decade"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "hendecad"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "dodecad"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "duodecade"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "chiliad"
    }
  ],
  "derived": [
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "tetrad of Fallot"
    },
    {
      "_dis1": "0 0 0 0 0 0 0",
      "word": "tetradic"
    }
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        "2": "grc",
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      },
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      "name": "der"
    },
    {
      "args": {
        "1": "en",
        "2": "tetra",
        "3": "ad"
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      "name": "confix"
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  "etymology_text": "From Ancient Greek τετράς (tetrás), analysable as tetra- + -ad.",
  "forms": [
    {
      "form": "tetrads",
      "tags": [
        "plural"
      ]
    }
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    {
      "args": {},
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  "lang_code": "en",
  "pos": "noun",
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        {
          "ref": "2010, Siddhartha Mukherjee, The Emperor of All Maladies, Fourth Estate (2011), page 177",
          "text": "Religious movements and cults are often founded on a tetrad of elements: a prophet, a prophecy, a book, and a revelation.",
          "type": "quotation"
        }
      ],
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        "A group of four things."
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      "id": "en-tetrad-en-noun-LGkFVJwi",
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          "word": "foursome"
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          "word": "quartet"
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          "word": "quartet"
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        "(biology) A group of four haploid and immature pollen grains in tetrahedral fashion produced by meiotic microsporogenesis."
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        "natural-sciences"
      ]
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          "kind": "other",
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          "kind": "topical",
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      ],
      "examples": [
        {
          "ref": "2010, Richard Mabey, Weeds: How Vagabond Plants Gatecrashed Civilisation and Changed the Way We Think about Nature, London: Profile Books",
          "text": "They took figures for the abundance of invasive weeds mapped according to the normal grid unit of the 'hectad', or 10 × 10 km square, and then looked at how abundant these species were mapped at a much finer scale – in 'tetrads', or 2 × 2 km squares, inside these hectads.",
          "type": "quotation"
        }
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      "glosses": [
        "A unit of land area of two by two (that is, four) square kilometres."
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        "(cartography) A unit of land area of two by two (that is, four) square kilometres."
      ],
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        "cartography",
        "geography",
        "natural-sciences"
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          "orig": "en:Chemistry",
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      "glosses": [
        "A tetravalent atom or radical."
      ],
      "id": "en-tetrad-en-noun-hFX7MgCe",
      "links": [
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          "radical"
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      "raw_glosses": [
        "(chemistry) A tetravalent atom or radical."
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        "natural-sciences",
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          "langcode": "en",
          "name": "Mathematics",
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          "_dis": "9 22 15 22 8 13 10",
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      "glosses": [
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      "links": [
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        [
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          "manifold"
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      "raw_glosses": [
        "(mathematics) A group of four basis vectors for a four-dimensional manifold in differential geometry."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Music",
          "orig": "en:Music",
          "parents": [
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            "Society",
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      ],
      "glosses": [
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      ],
      "id": "en-tetrad-en-noun-YEBx5njm",
      "links": [
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        [
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      "raw_glosses": [
        "(music) A chord comprised of four notes; a tetrachord."
      ],
      "topics": [
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        "lifestyle",
        "music"
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    }
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  "sounds": [
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      "ipa": "/ˈtɛtɹæd/",
      "tags": [
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        "Received-Pronunciation"
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    {
      "audio": "LL-Q1860 (eng)-Vealhurl-tetrad.wav",
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      "tags": [
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      "text": "Audio (Southern England)"
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  "translations": [
    {
      "_dis1": "1 28 16 24 4 19 7",
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "četvorka",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "четворка"
    },
    {
      "_dis1": "1 28 16 24 4 19 7",
      "code": "fi",
      "lang": "Finnish",
      "sense": "Translations",
      "word": "tetradi"
    },
    {
      "_dis1": "1 28 16 24 4 19 7",
      "code": "fi",
      "lang": "Finnish",
      "sense": "Translations",
      "word": "bivalentti"
    },
    {
      "_dis1": "1 28 16 24 4 19 7",
      "code": "fr",
      "lang": "French",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "tétrade"
    },
    {
      "_dis1": "1 28 16 24 4 19 7",
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "word": "Tetrade"
    },
    {
      "_dis1": "1 28 16 24 4 19 7",
      "code": "el",
      "lang": "Greek",
      "roman": "tetráda",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "τετράδα"
    },
    {
      "_dis1": "1 28 16 24 4 19 7",
      "code": "io",
      "lang": "Ido",
      "sense": "Translations",
      "word": "tetrado"
    },
    {
      "_dis1": "1 28 16 24 4 19 7",
      "code": "it",
      "lang": "Italian",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "tetrade"
    },
    {
      "_dis1": "1 28 16 24 4 19 7",
      "code": "ru",
      "lang": "Russian",
      "roman": "tetrada",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "тетрада"
    },
    {
      "_dis1": "1 28 16 24 4 19 7",
      "code": "es",
      "lang": "Spanish",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "tétrada"
    }
  ],
  "wikipedia": [
    "tetrad"
  ],
  "word": "tetrad"
}
{
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    "English terms derived from Ancient Greek",
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    "English terms with IPA pronunciation",
    "English terms with audio links",
    "Translation table header lacks gloss",
    "en:Four"
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  "coordinate_terms": [
    {
      "sense": "group",
      "word": "monad"
    },
    {
      "word": "duad"
    },
    {
      "word": "dyad"
    },
    {
      "word": "triad"
    },
    {
      "word": "pentad"
    },
    {
      "word": "hexad"
    },
    {
      "word": "hebdomad"
    },
    {
      "word": "heptad"
    },
    {
      "word": "ogdoad"
    },
    {
      "word": "octad"
    },
    {
      "word": "ennead"
    },
    {
      "word": "nonad"
    },
    {
      "word": "decad"
    },
    {
      "word": "decade"
    },
    {
      "word": "hendecad"
    },
    {
      "word": "dodecad"
    },
    {
      "word": "duodecade"
    },
    {
      "word": "chiliad"
    }
  ],
  "derived": [
    {
      "word": "tetrad of Fallot"
    },
    {
      "word": "tetradic"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "τετράς"
      },
      "expansion": "Ancient Greek τετράς (tetrás)",
      "name": "der"
    },
    {
      "args": {
        "1": "en",
        "2": "tetra",
        "3": "ad"
      },
      "expansion": "tetra- + -ad",
      "name": "confix"
    }
  ],
  "etymology_text": "From Ancient Greek τετράς (tetrás), analysable as tetra- + -ad.",
  "forms": [
    {
      "form": "tetrads",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "tetrad (plural tetrads)",
      "name": "en-noun"
    }
  ],
  "hyphenation": [
    "tet‧rad"
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2010, Siddhartha Mukherjee, The Emperor of All Maladies, Fourth Estate (2011), page 177",
          "text": "Religious movements and cults are often founded on a tetrad of elements: a prophet, a prophecy, a book, and a revelation.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A group of four things."
      ],
      "links": [
        [
          "group",
          "group"
        ],
        [
          "four",
          "four"
        ]
      ],
      "synonyms": [
        {
          "word": "foursome"
        },
        {
          "word": "quartet"
        },
        {
          "word": "quartet"
        }
      ]
    },
    {
      "categories": [
        "en:Biology"
      ],
      "glosses": [
        "Two pairs of sister chromatids (a dyad pair) aligned in a certain way and often on the equatorial plane during the meiosis process."
      ],
      "links": [
        [
          "biology",
          "biology"
        ],
        [
          "sister chromatids",
          "sister chromatids"
        ],
        [
          "dyad",
          "dyad"
        ],
        [
          "meiosis",
          "meiosis"
        ]
      ],
      "raw_glosses": [
        "(biology) Two pairs of sister chromatids (a dyad pair) aligned in a certain way and often on the equatorial plane during the meiosis process."
      ],
      "topics": [
        "biology",
        "natural-sciences"
      ]
    },
    {
      "categories": [
        "en:Biology"
      ],
      "glosses": [
        "A group of four haploid and immature pollen grains in tetrahedral fashion produced by meiotic microsporogenesis."
      ],
      "links": [
        [
          "biology",
          "biology"
        ]
      ],
      "raw_glosses": [
        "(biology) A group of four haploid and immature pollen grains in tetrahedral fashion produced by meiotic microsporogenesis."
      ],
      "topics": [
        "biology",
        "natural-sciences"
      ]
    },
    {
      "categories": [
        "English terms with quotations",
        "en:Cartography"
      ],
      "examples": [
        {
          "ref": "2010, Richard Mabey, Weeds: How Vagabond Plants Gatecrashed Civilisation and Changed the Way We Think about Nature, London: Profile Books",
          "text": "They took figures for the abundance of invasive weeds mapped according to the normal grid unit of the 'hectad', or 10 × 10 km square, and then looked at how abundant these species were mapped at a much finer scale – in 'tetrads', or 2 × 2 km squares, inside these hectads.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A unit of land area of two by two (that is, four) square kilometres."
      ],
      "links": [
        [
          "cartography",
          "cartography"
        ],
        [
          "unit",
          "unit"
        ],
        [
          "land",
          "land"
        ],
        [
          "area",
          "area"
        ],
        [
          "square kilometre",
          "square kilometre"
        ]
      ],
      "raw_glosses": [
        "(cartography) A unit of land area of two by two (that is, four) square kilometres."
      ],
      "topics": [
        "cartography",
        "geography",
        "natural-sciences"
      ]
    },
    {
      "categories": [
        "en:Chemistry"
      ],
      "glosses": [
        "A tetravalent atom or radical."
      ],
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "tetravalent",
          "tetravalent"
        ],
        [
          "atom",
          "atom"
        ],
        [
          "radical",
          "radical"
        ]
      ],
      "raw_glosses": [
        "(chemistry) A tetravalent atom or radical."
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    },
    {
      "categories": [
        "en:Mathematics"
      ],
      "glosses": [
        "A group of four basis vectors for a four-dimensional manifold in differential geometry."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "basis",
          "basis"
        ],
        [
          "vectors",
          "vectors"
        ],
        [
          "manifold",
          "manifold"
        ],
        [
          "differential geometry",
          "differential geometry"
        ]
      ],
      "raw_glosses": [
        "(mathematics) A group of four basis vectors for a four-dimensional manifold in differential geometry."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    },
    {
      "categories": [
        "en:Music"
      ],
      "glosses": [
        "A chord comprised of four notes; a tetrachord."
      ],
      "links": [
        [
          "music",
          "music"
        ],
        [
          "chord",
          "chord"
        ],
        [
          "tetrachord",
          "tetrachord"
        ]
      ],
      "raw_glosses": [
        "(music) A chord comprised of four notes; a tetrachord."
      ],
      "topics": [
        "entertainment",
        "lifestyle",
        "music"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈtɛtɹæd/",
      "tags": [
        "General-American",
        "Received-Pronunciation"
      ]
    },
    {
      "audio": "LL-Q1860 (eng)-Vealhurl-tetrad.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/b/b4/LL-Q1860_%28eng%29-Vealhurl-tetrad.wav/LL-Q1860_%28eng%29-Vealhurl-tetrad.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/b/b4/LL-Q1860_%28eng%29-Vealhurl-tetrad.wav/LL-Q1860_%28eng%29-Vealhurl-tetrad.wav.ogg",
      "tags": [
        "Southern-England"
      ],
      "text": "Audio (Southern England)"
    }
  ],
  "translations": [
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "četvorka",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "четворка"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "Translations",
      "word": "tetradi"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "Translations",
      "word": "bivalentti"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "tétrade"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "word": "Tetrade"
    },
    {
      "code": "el",
      "lang": "Greek",
      "roman": "tetráda",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "τετράδα"
    },
    {
      "code": "io",
      "lang": "Ido",
      "sense": "Translations",
      "word": "tetrado"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "tetrade"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "tetrada",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "тетрада"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "Translations",
      "tags": [
        "feminine"
      ],
      "word": "tétrada"
    }
  ],
  "wikipedia": [
    "tetrad"
  ],
  "word": "tetrad"
}

This page is a part of the kaikki.org machine-readable All languages combined dictionary. This dictionary is based on structured data extracted on 2024-04-26 from the enwiktionary dump dated 2024-04-21 using wiktextract (93a6c53 and 21a9316). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

If you use this data in academic research, please cite Tatu Ylonen: Wiktextract: Wiktionary as Machine-Readable Structured Data, Proceedings of the 13th Conference on Language Resources and Evaluation (LREC), pp. 1317-1325, Marseille, 20-25 June 2022. Linking to the relevant page(s) under https://kaikki.org would also be greatly appreciated.