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asbestos

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as⋅bes⋅tos

[as-bes-tuhs, az-]
–noun
1. Mineralogy. a fibrous mineral, either amphibole or chrysotile, formerly used for making incombustible or fireproof articles.
2. a fabric woven from asbestos fibers, formerly used for theater curtains, firefighters' gloves, etc.
3. Theater. a fireproof curtain.
Also, as⋅bes⋅tus.


Origin:
1350–1400; < L < Gk: lit., unquenched, equiv. to a- a- 6 + sbestós (sbes- var. s. of sbennýnai to quench + -tos ptp. suffix); r. ME asbeston, albeston < MF < L


as⋅bes⋅tine [as-bes-tin, az-] , as⋅bes⋅tous, adjective
as⋅bes⋅toid, as⋅bes⋅toi⋅dal, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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as·bes·tos   (ās-běs'təs, āz-)   
n.  Either of two incombustible, chemical-resistant, fibrous mineral forms of impure magnesium silicate, used for fireproofing, electrical insulation, building materials, brake linings, and chemical filters.
adj.  Of, made of, or containing one or the other of these two mineral forms.

[Middle English asbestus, from Latin asbestos, mineral or gem, from Greek, mineral or gem, unslaked lime, from asbestos, unquenchable : a-, not; see a-1 + sbennunai, sbes-, to quench.]
as·bes'tine (-tĭn), as·bes'tic (-tĭk) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

asbestos 
1387, fabulous stone, which, when set afire, would not be extinguished; from O.Fr. abeste, from L. asbestos "quicklime" (which "burns" when cold water is poured on it), from Gk. asbestos, lit. "inextinguishable," from a- "not" + sbestos, verbal adj. from sbennynai "to quench," from PIE base *gwes- "to quench, extinguish" (cf. Lith. gestu "to go out," O.C.S. gaso, Hittite kishtari "is being put out"). Meaning "mineral capable of being woven into incombustible fabric" is from 1607; earlier this was called amiant (1420), from L. amiantus, from Gk. amiantos "undefiled" (so called because it showed no mark or stain when thrown into fire). Pliny was the first to make the error of calling this asbestos. Supposed in the Middle Ages to be salamanders' wool. Prester John, the Emperor of India, and Pope Alexander III were said to have had robes or tunics made of it.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: as·bes·tos
Pronunciation: as-'bes-t&s, az-
Function: noun
: any of several minerals that readily separate into long flexiblefibers, that have been implicated as causes of certain cancers, and that have been used especially formerly as fireproof insulating materials
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

asbestos as·bes·tos or as·bes·tus (ās-běs'təs, āz-)
n.
Either of two incombustible, chemical-resistant, fibrous mineral forms of impure magnesium silicate, used for fireproofing, electrical insulation, brake linings, and chemical filters. adj.
Of, made of, or containing one or the other of these two mineral forms.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
asbestos   (ās-běs'təs)  Pronunciation Key 
Any of several fibrous mineral forms of magnesium silicate. Asbestos is resistant to heat, flames, and chemical action. Some forms have been shown to cause lung diseases. For this reason, asbestos is no longer used to make insulation, fireproofing material, and brake linings.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Computing Dictionary

asbestos jargon
Used as a modifier to anything intended to protect one from flames; also in other highly flame-suggestive usages. E.g., asbestos longjohns, asbestos cork award.
[The Jargon File]
(1996-02-06)

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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Encyclopedia

Asbestos

town, Estrie region, southern Quebec province, Canada. Asbestos lies near the Southwest Nicolet River, 95 miles (153 km) southwest of Quebec city. Its economy traditionally depended almost entirely on asbestos mining and the manufacture of asbestos products. One of the mines-the Jeffrey open-pit mine-is one of the largest asbestos mines in the world. Electrical equipment and wood products are manufactured. Inc. village, 1899; town, 1937. Pop. (2006) 6,819.

Learn more about Asbestos with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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