Isinglass definition

īzən-glăs, īzĭng-
A transparent, almost pure gelatin prepared from the swim bladder of the sturgeon and certain other fishes and used as an adhesive and a clarifying agent.
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Mica in thin, transparent sheets.
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A form of gelatin prepared from the internal membranes of fish bladders: it is used as a clarifying agent and adhesive.
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Mica, esp. in the form of thin, transparent sheets of muscovite.
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A transparent, almost pure gelatin prepared from the swim bladder of the sturgeon and certain other fishes and used as an adhesive and a clarifying agent.
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A transparent, almost pure gelatin prepared from the inner membrane of the swim bladder of the sturgeon and certain other fishes. It is used as an adhesive and a clarifying agent.
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Mica, especially in the form of the mineral muscovite.
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A form of gelatine obtained from the air bladder of the sturgeon and certain other fish, used as an adhesive and as a clarifying agent for wine and beer.
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A thin, transparent sheet of mica.
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Other Word Forms

Noun

Singular:
isinglass
Plural:
isinglasses

Origin of isinglass

  • By folk etymology (influenced by glass) from obsolete Dutch huizenblas from Middle Dutch hūsblase hūs sturgeon blase bladder bhlē- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • Apparently from obsolete Dutch huisenblas, German Hausenblase (“sturgeon's bladder”).

    From Wiktionary