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isinglass

From Wiktionary, the free dictionary

English

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WOTD – 30 May 2016
EnglishWikipedia has an article on:
Wikipedia
Pieces of isinglass used to maketemperapaints
An isinglass solution being added to a tank ofwine tofine it – to improve itsclarity andstability

Etymology

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Apparently from obsoleteDutchhuisenblas, fromGermanHausenblase, fromHausen(“sturgeon of theHusogenus”) +Blase(“bladder”).

Pronunciation

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Noun

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isinglass (usuallyuncountable,pluralisinglasses)

  1. A form ofgelatine obtained from theair bladder of thesturgeon and certain otherfish, used as an adhesive and as aclarifyingagent forwine andbeer.
    • 1830, Richard Dolby,The Cook's Dictionary, and House-keeper's Directory: A New Family Manual of Cookery and Confectionery, on a Plan of Ready Reference Never Hitherto Attempted, London:Henry Colburn andRichard Bentley,New Burlington Street,→OCLC,page292, column 1:
      Isinglassflummery.—Put six ounces ofisinglass into a quart of new milk, sweeten it, set it over the fire, and keep it stirring one way all the time, till it is jellied; pour it into basins, and when cold turn it out; you may put in orange flower water if you like.
    • 1842,J[ohn] F[orbes] Royle,On the Production of Isinglass along the Coasts of India, with a Notice of its Fisheries (Goldsmiths'-Kress Library of Economic Literature;no. 32618), London:Wm. H. Allen and Co., Booksellers to the HonourableEast-India Company,Leadenhall Street,→OCLC,page 1:
      Isinglass is a substance well known in commerce, from its employment both in the arts and in domestic economy. It is the purest known form of animal jelly, and is obtained from the swimming bladder of a few kinds of fish, chiefly of the genus Sturgeon, the Acipenser of zoologists. This is indicated by some of its continental names, of which the English is no doubt a corruption;—thus, in German,Isinglass is calledHausenblase, fromhausen the great sturgeon, andblase a bladder.
    • 1858,Catalogue of the Collection of Animal Products Belonging to Her Majesty's Commissioners for the Exhibition of 1851, Exhibited in the South Kensington Museum, London: Printed for Her Majesty's Commissioners byW. Clowes and Sons,Stamford Street andCharing Cross,→OCLC,page 68, column 1:
      Isinglass is brought to market in different forms, sometimes in that of simple plates, at other times rolled up in different shapes, or cut into fine thread. When of good qualityisinglass is of a whitish colour, thin, and semi-transparent, but tough and flexible, destitute of taste as well as of smell. The inferior kinds are thicker, yellowish-coloured, opaque, and sometimes have a fishy smell and taste. In boiling waterisinglass is entirely dissolved, with the exception of a very minute portion of impurities.
    • 1868,Jonathan Pereira, “The Gelatinous Alimentary Principle”, in Charles A. Lee, editor,A Treatise on Food and Diet: With Observations on the Dietetical Regimen Suited for Disordered States of the Digestive Organs; and an Account of the Dietaries of Some of the Principal Metropolitan and Other Establishments for Paupers, Lunatics, Criminals, Children, the Sick, &c, New York, N.Y.: Samuel R. Wells, Publisher, 389Broadway,→OCLC,page103:
      Isinglass.—This is procured from theair-bag orswimming-bladder, sometimes termed thesound, of various fishes.[…] Sometimes the bag is dried unopened, as in the case of thepurse,pipe, andlumpisinglasses of the shops. At other times it is laid open, and submitted to some preparation; being either dried unfolded, as in theleaf andhoneycombisinglasses; or folded, as in thestaple (long andshort) andbookisinglasses; or rolled out, as in theribbonisinglass.
    • 1991, Tim E. Holzkamm, Victor P. Lytwyn, Leo G. Waisberg, “Rainy River Sturgeon: An Ojibway Resource in the Fur Trade Economy”, in Kerry[Margaret] Abel,Jean Friesen, editors,Aboriginal Resource Use in Canada: Historical and Legal Aspects (Manitoba Studies in Native History; 6), Winnipeg, Manitoba:University of Manitoba Press,→ISBN, page128:
      The sturgeon yielded a non-food product that was important for domestic and commercial use. This wasisinglass, a gelatinous substance that was derived from the inner membrane of the air bladder (also called the swimbladder, or sound).Isinglass had a variety of uses. The Ojibway valued it as an effective binding agent in the manufacture of paint.Isinglass was also a product much in demand in Europe during the fur trade period. It was noted as producing a high quality glue and as a fining agent for beers and wines.
    • 1994, William A. Hardwick, editor,Handbook of Brewing (Food Science and Technology;64), New York, N.Y.:Marcel Dekker, Inc.,→ISBN, page222:
      Not all fish have swim bladders, and those from certain tropical or semitropical areas (roughly 20° N and 15° S) provide the best qualityisinglass for fining purposes. Of these fish, the threadfin family (Polynemoidia) provide excellent quality. In order to gain a desirable fining quality for a particular beer type, two or more kinds ofisinglass may be blended. To illustrate this more precisely,Polynemusisinglass provides a fining that settles densely, whereasSilurusisinglass, from the great catfish family (Siluridae) in South America, gives a more flocculant fining but which settles less densely and consequently is more easily disturbed.
  2. A thin,transparent sheet ofmica (probably from its similarity to true isinglass and/or resulting from confusion with the termMuscovy glass for glazing made from mica, but also used for isinglass, which was chiefly produced in the Caspian Sea region of Russia, or Muscovy).
    • 1771, J[ohn] Hill,Fossils Arranged According to their Obvious Characters; with their History and Description; under the Articles of Form, Hardness, Weight, Surface, Colour, and Qualities; the Place of their Production, their Uses, and Distinctive English, and Classical Latin Names, London: Printed for R. Baldwin, inPater-noster Row; andP[eter] Elmsley, in theStrand,→OCLC,page10:
      TALC. / GENUS I. /ISINGLASS. / VITRUM. / Compoſed of broad, flat, cloſe, poliſhed Plates.
    • 1914, A. J. Jarman, “Photographs upon Mica and Similar Material”,The Camera, London: [Camera Publishing Company], volume 18, number 7,OCLC50541188, page 398:
      There is a general error prevalent that mica isisinglass, and many times it is spoken of asisinglass, but there is a great difference between the two. Mica is mainly composed of silicate of aluminum, whileisinglass is a fish gelatine or glue […]
    • 1918, “Economic Relations and Military Uses of Materials”, inHerbert E[rnest] Gregory, editor,Military Geology and Topography: A Presentation of Certain Phases of Geology, Geography and Topography for Military Purposes, New Haven, Ct.:Yale University Press,→OCLC,page266:
      MICA (ISINGLASS). Mica is valuable because of its perfect cleavage, transparency, elasticity, non-conductivity of heat and electricity, resistance to decomposition, and non-inflammability. It is mostly used as an insulating material in the manufacture of electrical apparatus.
    • 1943,Oscar Hammerstein II (lyrics),Richard Rodgers (music), “The Surrey with the Fringe on Top”, fromOklahoma!:
      The dashboard's genuine leather, / Withisinglass curtains y' can roll right down, / In case there's a change in the weather.
    • 1976 September, Don Yule, “Cooking and Eating the 19th Century Way”, inThe Old-House Journal, volume IV, number 9,[Brooklyn, N.Y.]: Old-House Journal Corp.,→OCLC,pages2–3:
      THE FRONT DOORS OF MY STOVE HAD WINDOWS ofisinglass (mica) which needed replacement. While impervious to heat,isinglass is quite fragile and one must avoid touching these panels when using the doors. The panels are held in place by a frame bracket screwed to the inside of each door. Fortunately, a supply of extra mica panels was found in the house.
    • 2009, James S. Monroe, Reed Wicander,The Changing Earth: Exploring Geology and Evolution, 5th edition, Belmont, Calif.:Brooks/Cole,→ISBN, page76:
      Do you enjoy the amber glow seen through theisinglass window of a wood stove?[…]Muscovite (colorless, white, or pale red or green) mica is also common […]; it was named forMoskva (Moscow), where much of Europe's mica was mined.Isinglass, mentioned above, consists of thin, transparent sheets of muscovite.

Translations

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gelatine obtained from fish

Further reading

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  • David Barthelmy (1997–2025) “Isinglass”, inWebmineral Mineralogy Database.
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