different between isinglass vs carlock

English

Etymology

Apparently from obsolete Dutch huisenblas, from German Hausenblase, from Hausen (“sturgeon of the Huso genus”) + Blase (“bladder”).

Pronunciation

• (Received Pronunciation) IPA^(key): /?a?z???l??s/
• (General American) IPA^(key): /?a?z???læs/
• Hyphenation: i?sin?glass

Noun

isinglass (usually uncountable, plural isinglasses)

1. 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.
2. A thin, transparent sheet of mica (probably from its similarity to true isinglass).
   • 1914, A. J. Jarman, “Photographs upon Mica and Similar Material”, The Camera, London: [Camera Publishing Company], volume 18, number 7, OCLC 50541188, page 398:

     There is a general error prevalent that mica is isinglass, and many times it is spoken of as isinglass, but there is a great difference between the two. Mica is mainly composed of silicate of aluminum, while isinglass is a fish gelatine or glue […]

   • 1943, Oscar Hammerstein II (lyrics), Richard Rodgers (music), “The Surrey with the Fringe on Top”, from Oklahoma!:

     The dashboard's genuine leather, / With isinglass curtains y' can roll right down, / In case there's a change in the weather.

Translations

Further reading

• David Barthelmy (1997–2021) , “Isinglass”, in Webmineral Mineralogy Database

English

Etymology

French, from Russian.

Noun

carlock (uncountable)

1. A sort of Russian isinglass, made from the air bladder of the sturgeon, and used in clarifying wine.