"crown glass" meaning in English

See crown glass in All languages combined, or Wiktionary

Noun

Forms: crown glasses [plural]
Etymology: So called from a crown-like shape given to it in the process of blowing. Head templates: {{en-noun|-|+}} crown glass (usually uncountable, plural crown glasses)
  1. An early type of window glass made by blowing glass into a hollow globe (crown) and then flattening it on a punty, reheating and spinning out into a flat disk by centrifugal force. Tags: uncountable, usually Categories (topical): Glassblowing Translations (type of window glass): kruunulasi (Finnish), pullonpohjalasi (Finnish)
    Sense id: en-crown_glass-en-noun-mKmzQgYK Disambiguation of Glassblowing: 48 52 Categories (other): English entries with incorrect language header Disambiguation of English entries with incorrect language header: 46 54 Disambiguation of 'type of window glass': 76 24
  2. (optics) A variety of glass used in lenses and other optical components due to its low refractive index and dispersion. Originally crown glass was made from alkali-lime silicates with approximately 10% potassium oxide, but similar properties may be attained with other recipes. Tags: uncountable, usually Categories (topical): Optics, Glassblowing Related terms: bullseye Translations (variety of optical glass): kruunulasi (Finnish)
    Sense id: en-crown_glass-en-noun-9goSyu0g Disambiguation of Glassblowing: 48 52 Categories (other): English entries with incorrect language header, English entries with topic categories using raw markup, English terms with non-redundant non-automated sortkeys Disambiguation of English entries with incorrect language header: 46 54 Disambiguation of English entries with topic categories using raw markup: 40 60 Disambiguation of English terms with non-redundant non-automated sortkeys: 43 57 Topics: engineering, natural-sciences, optics, physical-sciences, physics Disambiguation of 'variety of optical glass': 31 69

Inflected forms

Download JSON data for crown glass meaning in English (3.7kB)

{
  "etymology_text": "So called from a crown-like shape given to it in the process of blowing.",
  "forms": [
    {
      "form": "crown glasses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "+"
      },
      "expansion": "crown glass (usually uncountable, plural crown glasses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "46 54",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "48 52",
          "kind": "topical",
          "langcode": "en",
          "name": "Glassblowing",
          "orig": "en:Glassblowing",
          "parents": [
            "Crafts",
            "Glass",
            "Society",
            "Materials",
            "All topics",
            "Manufacturing",
            "Fundamental",
            "Human activity",
            "Human behaviour",
            "Human"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "An early type of window glass made by blowing glass into a hollow globe (crown) and then flattening it on a punty, reheating and spinning out into a flat disk by centrifugal force."
      ],
      "id": "en-crown_glass-en-noun-mKmzQgYK",
      "links": [
        [
          "punty",
          "punty"
        ],
        [
          "centrifugal force",
          "centrifugal force"
        ]
      ],
      "tags": [
        "uncountable",
        "usually"
      ],
      "translations": [
        {
          "_dis1": "76 24",
          "code": "fi",
          "lang": "Finnish",
          "sense": "type of window glass",
          "word": "kruunulasi"
        },
        {
          "_dis1": "76 24",
          "code": "fi",
          "lang": "Finnish",
          "sense": "type of window glass",
          "word": "pullonpohjalasi"
        }
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Optics",
          "orig": "en:Optics",
          "parents": [
            "Physics",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "46 54",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "40 60",
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "43 57",
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "48 52",
          "kind": "topical",
          "langcode": "en",
          "name": "Glassblowing",
          "orig": "en:Glassblowing",
          "parents": [
            "Crafts",
            "Glass",
            "Society",
            "Materials",
            "All topics",
            "Manufacturing",
            "Fundamental",
            "Human activity",
            "Human behaviour",
            "Human"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "text": "The convex half of an achromatic lens is composed of crown glass."
        }
      ],
      "glosses": [
        "A variety of glass used in lenses and other optical components due to its low refractive index and dispersion. Originally crown glass was made from alkali-lime silicates with approximately 10% potassium oxide, but similar properties may be attained with other recipes."
      ],
      "id": "en-crown_glass-en-noun-9goSyu0g",
      "links": [
        [
          "optics",
          "optics"
        ],
        [
          "lenses",
          "lense"
        ],
        [
          "refractive index",
          "refractive index"
        ],
        [
          "dispersion",
          "dispersion"
        ],
        [
          "alkali",
          "alkali"
        ],
        [
          "lime",
          "lime"
        ],
        [
          "silicates",
          "silicate"
        ],
        [
          "potassium",
          "potassium"
        ],
        [
          "oxide",
          "oxide"
        ]
      ],
      "raw_glosses": [
        "(optics) A variety of glass used in lenses and other optical components due to its low refractive index and dispersion. Originally crown glass was made from alkali-lime silicates with approximately 10% potassium oxide, but similar properties may be attained with other recipes."
      ],
      "related": [
        {
          "_dis1": "43 57",
          "word": "bullseye"
        }
      ],
      "tags": [
        "uncountable",
        "usually"
      ],
      "topics": [
        "engineering",
        "natural-sciences",
        "optics",
        "physical-sciences",
        "physics"
      ],
      "translations": [
        {
          "_dis1": "31 69",
          "code": "fi",
          "lang": "Finnish",
          "sense": "variety of optical glass",
          "word": "kruunulasi"
        }
      ]
    }
  ],
  "word": "crown glass"
}
{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English entries with topic categories using raw markup",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English terms with non-redundant non-automated sortkeys",
    "English uncountable nouns",
    "en:Glassblowing"
  ],
  "etymology_text": "So called from a crown-like shape given to it in the process of blowing.",
  "forms": [
    {
      "form": "crown glasses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "+"
      },
      "expansion": "crown glass (usually uncountable, plural crown glasses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "bullseye"
    }
  ],
  "senses": [
    {
      "glosses": [
        "An early type of window glass made by blowing glass into a hollow globe (crown) and then flattening it on a punty, reheating and spinning out into a flat disk by centrifugal force."
      ],
      "links": [
        [
          "punty",
          "punty"
        ],
        [
          "centrifugal force",
          "centrifugal force"
        ]
      ],
      "tags": [
        "uncountable",
        "usually"
      ]
    },
    {
      "categories": [
        "en:Optics"
      ],
      "examples": [
        {
          "text": "The convex half of an achromatic lens is composed of crown glass."
        }
      ],
      "glosses": [
        "A variety of glass used in lenses and other optical components due to its low refractive index and dispersion. Originally crown glass was made from alkali-lime silicates with approximately 10% potassium oxide, but similar properties may be attained with other recipes."
      ],
      "links": [
        [
          "optics",
          "optics"
        ],
        [
          "lenses",
          "lense"
        ],
        [
          "refractive index",
          "refractive index"
        ],
        [
          "dispersion",
          "dispersion"
        ],
        [
          "alkali",
          "alkali"
        ],
        [
          "lime",
          "lime"
        ],
        [
          "silicates",
          "silicate"
        ],
        [
          "potassium",
          "potassium"
        ],
        [
          "oxide",
          "oxide"
        ]
      ],
      "raw_glosses": [
        "(optics) A variety of glass used in lenses and other optical components due to its low refractive index and dispersion. Originally crown glass was made from alkali-lime silicates with approximately 10% potassium oxide, but similar properties may be attained with other recipes."
      ],
      "tags": [
        "uncountable",
        "usually"
      ],
      "topics": [
        "engineering",
        "natural-sciences",
        "optics",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "type of window glass",
      "word": "kruunulasi"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "type of window glass",
      "word": "pullonpohjalasi"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "variety of optical glass",
      "word": "kruunulasi"
    }
  ],
  "word": "crown glass"
}

This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2024-05-05 from the enwiktionary dump dated 2024-05-02 using wiktextract (f4fd8c9 and c9440ce). 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.

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