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 (ī′zən-glăs′, ī′zĭng-)
1. 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.
2. Mica in thin, transparent sheets.

[By folk etymology (influenced by glass) from obsolete Dutch huizenblas, from Middle Dutch hūsblase : hūs, sturgeon + blase, bladder; see bhlē- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Chemistry) a gelatine made from the air bladders of freshwater fish, used as a clarifying agent and adhesive
[C16: from Middle Dutch huysenblase, literally: sturgeon bladder; influenced by English glass]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈaɪ zənˌglæs, -ˌglɑs, ˈaɪ zɪŋ-)

1. a pure, transparent or translucent form of gelatin obtained from the air bladders of certain fish, esp. the sturgeon, and used in glue and jellies and as a clarifying agent.
2. mica, esp. in thin sheets.
[1535–45; < Middle Dutch huysenblase (with glass for blase by folk etym.), literally, sturgeon bladder]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


A transparent gelatin made from the bladder of certain fish and used to make glue. Isinglass was also a term applied to the thin, transparent sheets of mica used in woodand coal-burning stove door windows. When thin sheets of clear plastic first began to be used for such things as vehicle window curtains, they were also sometimes referred to as being of isinglass.
1001 Words and Phrases You Never Knew You Didn’t Know by W.R. Runyan Copyright © 2011 by W.R. Runyan
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Isinglass - any of various minerals consisting of hydrous silicates of aluminum or potassium etc. that crystallize in forms that allow perfect cleavage into very thin leavesisinglass - any of various minerals consisting of hydrous silicates of aluminum or potassium etc. that crystallize in forms that allow perfect cleavage into very thin leaves; used as dielectrics because of their resistance to electricity
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
biotite - dark brown to black mica found in igneous and metamorphic rock
lepidolite - a mineral of the mica group; an important source of lithium
muscovite - a colorless or pale brown mica with potassium
paragonite - a colorless or pale brown mica with sodium
phlogopite - a brown form of mica consisting of hydrous silicate of potassium and magnesium and aluminum
translucent substance, transparent substance - a material having the property of admitting light diffusely; a partly transparent material
zinnwaldite - a mica containing iron and lithium
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


[ˈaɪzɪŋglɑːs] Ncola f de pescado
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005


nFischleim m
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
References in classic literature ?
True, from the unmarred dead body of the whale, you may scrape off with your hand an infinitely thin, transparent substance, somewhat resembling the thinnest shreds of isinglass, only it is almost as flexible and soft as satin; that is, previous to being dried, when it not only contracts and thickens, but becomes rather hard and brittle.
A Heidenberg stove, filled to the brim with intensely burning anthracite, was sending a bright gleam through the isinglass of its iron door, and causing the vase of water on its top to fume and bubble with excitement.
And the Heidenberg stove, through the isinglass of its door, seemed to glare at good Mr.
From such things as feet, knuckles, hide clippings, and sinews came such strange and unlikely products as gelatin, isinglass, and phosphorus, bone black, shoe blacking, and bone oil.
'Except,' Eugene strikes in: so unexpectedly that the mature young lady, who has forgotten all about him, with a start takes the epaulette out of his way: 'except our friend who long lived on rice- pudding and isinglass, till at length to his something or other, his physician said something else, and a leg of mutton somehow ended in daygo.'
Much to my dismay, and previously unbeknown to me, I found buying beer and wine a faff, as it can be processed using animal products such as isinglass (gelatin from fish bladder membranes), egg whites, casein (milk protein) and even bone marrow, making it non-vegan if processed in this way.
What makes their beer different is the fact it is all free from isinglass, a fish component that's used in many beers and wines to give them clarity.
She also sliced up apples into rings, drying them on a string over the fireplace, and preserved eggs from our chickens in something called isinglass in a very large brown bread crock in the cellar.
These fining agents can include egg white, isinglass (which comes from fish) and charcoal which could be made from animal bones.
Some is filtered with animal products such as gelatin, egg whites, bone meal, or isinglass (fish bladders/bones).
Did you know many wines are made using fining agents such as blood and bone marrow, casein (milk protein), chitin (fibre from crustacean shells), egg albumen (derived from egg whites), fish oil, gelatin (protein from boiling animal parts) and isinglass (gelatine from fish bladder membranes).