"xenna-" meaning in English

{
  "antonyms": [
    {
      "word": "xenno-"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "ἐννέα",
        "t": "nine"
      },
      "expansion": "Ancient Greek ἐννέα (ennéa, “nine”)",
      "name": "der"
    },
    {
      "args": {
        "1": "mul",
        "2": "",
        "3": "x"
      },
      "expansion": "x",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "zetta-"
      },
      "expansion": "zetta-",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "yotta-"
      },
      "expansion": "yotta-",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "",
        "3": "a"
      },
      "expansion": "a",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "mega-"
      },
      "expansion": "mega-",
      "name": "m"
    }
  ],
  "etymology_text": "From Ancient Greek ἐννέα (ennéa, “nine”), for the ninth order of 10³, and the letter x, as the third term in a series running backwards through the alphabet (after zetta- and yotta-). The final a conforms to the final vowel of the SI series from mega- upwards.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "xenna-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "xenna-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "categories": [],
      "examples": [
        {
          "ref": "1994, IPC Magazines, New Scientist, volume 144, page 81",
          "text": "The SI prefixes above are not the only extreme ones. Others such as xenno (x) (10⁻²⁷) and xenna (X) (10²⁷), or vendeko (v) (10⁻³³) and vendeka (V) (10³³) exist, and can help simplify the expression of extreme numbers.",
          "type": "quotation"
        },
        {
          "ref": "1997, Council of Scientific & Industrial Research, Science Reporter, volume 34, page 23",
          "text": "If we try to calculate the mass of earth it comes to 6 xennagrams which is nothing but 6x10²⁴ kilograms or 6x10²⁷ gms.",
          "type": "quotation"
        },
        {
          "ref": "2015, Claude Phipps, No Wonder You Wonder!: Great Inventions and Scientific Mysteries, Springer, page 62",
          "text": "But that's nothing: our universe is about 0.8 Xm (Xennametres, billions of billions of billions of metres) in diameter.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Synonym of ronna- (used before an official prefix existed). Symbol: X"
      ],
      "id": "en-xenna--en-prefix-SDZMTrgF",
      "links": [
        [
          "ronna-",
          "ronna-#English"
        ]
      ],
      "raw_glosses": [
        "(informal) Synonym of ronna- (used before an official prefix existed). Symbol: X"
      ],
      "synonyms": [
        {
          "extra": "(used before an official prefix existed). Symbol: X",
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "ronna-"
        }
      ],
      "tags": [
        "informal",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈzɛnə/"
    }
  ],
  "word": "xenna-"
}

{
  "antonyms": [
    {
      "word": "xenno-"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "ἐννέα",
        "t": "nine"
      },
      "expansion": "Ancient Greek ἐννέα (ennéa, “nine”)",
      "name": "der"
    },
    {
      "args": {
        "1": "mul",
        "2": "",
        "3": "x"
      },
      "expansion": "x",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "zetta-"
      },
      "expansion": "zetta-",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "yotta-"
      },
      "expansion": "yotta-",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "",
        "3": "a"
      },
      "expansion": "a",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "mega-"
      },
      "expansion": "mega-",
      "name": "m"
    }
  ],
  "etymology_text": "From Ancient Greek ἐννέα (ennéa, “nine”), for the ninth order of 10³, and the letter x, as the third term in a series running backwards through the alphabet (after zetta- and yotta-). The final a conforms to the final vowel of the SI series from mega- upwards.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "xenna-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "xenna-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        "English 2-syllable words",
        "English informal terms",
        "English lemmas",
        "English prefixes",
        "English terms derived from Ancient Greek",
        "English terms with IPA pronunciation",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1994, IPC Magazines, New Scientist, volume 144, page 81",
          "text": "The SI prefixes above are not the only extreme ones. Others such as xenno (x) (10⁻²⁷) and xenna (X) (10²⁷), or vendeko (v) (10⁻³³) and vendeka (V) (10³³) exist, and can help simplify the expression of extreme numbers.",
          "type": "quotation"
        },
        {
          "ref": "1997, Council of Scientific & Industrial Research, Science Reporter, volume 34, page 23",
          "text": "If we try to calculate the mass of earth it comes to 6 xennagrams which is nothing but 6x10²⁴ kilograms or 6x10²⁷ gms.",
          "type": "quotation"
        },
        {
          "ref": "2015, Claude Phipps, No Wonder You Wonder!: Great Inventions and Scientific Mysteries, Springer, page 62",
          "text": "But that's nothing: our universe is about 0.8 Xm (Xennametres, billions of billions of billions of metres) in diameter.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Synonym of ronna- (used before an official prefix existed). Symbol: X"
      ],
      "links": [
        [
          "ronna-",
          "ronna-#English"
        ]
      ],
      "raw_glosses": [
        "(informal) Synonym of ronna- (used before an official prefix existed). Symbol: X"
      ],
      "synonyms": [
        {
          "extra": "(used before an official prefix existed). Symbol: X",
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "ronna-"
        }
      ],
      "tags": [
        "informal",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈzɛnə/"
    }
  ],
  "word": "xenna-"
}