silicone

silicone

siliconepolymer in which atoms of silicon and oxygen alternate in a chain; various organic radicals, such as the methyl group, CH 3 , are bound to the silicon atoms. Silicones, which are unusually stable at extreme temperatures (both high and low), may occur as liquids, rubbers, resins, or greases. Silicones are prepared from halides of organic silicon compounds by decomposition. Such compounds are chosen and used in mixtures that allow the desired molecular weight and degree of cross-linking to be obtained in the final polymer. Water repellent, chemically inert, and stable at extreme temperatures, silicones are used as protective coatings and electrical insulators and in caulk.

Implants consisting of silicone gel surrounded by hard silicone were used in reconstructive and cosmetic breast surgery until 1992. The safety of inserting silicone prostheses into the body was questioned in a large product-liability case involving breast implants , but an Institute of Medicine panel concluded in 1999 that there was no evidence linking such implants with cancer, autoimmune diseases, and other serious illnesses. The use of such silicone implants for reconstructive surgery and for cosmetic surgery has been again approved by the FDA since 1998 and 2006 respectively.

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"silicone." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

"silicone." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1E1-silicone.html

"silicone." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-silicone.html

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silicone

sil·i·cone / ˈsiləˌkōn/ • n. any of a class of synthetic materials that are polymers with a chemical structure based on chains of alternate silicon and oxygen atoms, with organic groups attached to the silicon atoms. Such compounds are typically resistant to chemical attack and insensitive to temperature changes and are used to make rubber, plastics, polishes, and lubricants. • v. [tr.] (usu. be siliconed) join or otherwise treat (something) with a silicone.

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"silicone." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

"silicone." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O999-silicone.html

"silicone." The Oxford Pocket Dictionary of Current English. 2009. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-silicone.html

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silicone

silicone Odourless and colourless polymer based on silicon. Silicones are inert and stable at high temperatures, and are used in lubricants, varnishes, adhesives, water repellents, hydraulic fluids, and artificial heart valves.

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"silicone." World Encyclopedia. 2005. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

"silicone." World Encyclopedia. 2005. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O142-silicone.html

"silicone." World Encyclopedia. 2005. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-silicone.html

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silicones

silicones Organic compounds of silicon; in the food field they are used as antifoaming agents, as semi‐permanent glazes on baking tins and other metal containers, and on non‐stick wrapping paper.

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DAVID A. BENDER. "silicones." A Dictionary of Food and Nutrition. 2005. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

DAVID A. BENDER. "silicones." A Dictionary of Food and Nutrition. 2005. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O39-silicones.html

DAVID A. BENDER. "silicones." A Dictionary of Food and Nutrition. 2005. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O39-silicones.html

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silicone

silicone (sil-i-kohn) n. any of a group of synthetic organic compounds of silicon that are water-repellant and are used in medicine in prostheses and as lubricants and adhesives.

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"silicone." A Dictionary of Nursing. 2008. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

"silicone." A Dictionary of Nursing. 2008. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O62-silicone.html

"silicone." A Dictionary of Nursing. 2008. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O62-silicone.html

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silicone

siliconealone, atone, Beaune, bemoan, blown, bone, Capone, clone, Cohn, Cologne, condone, cone, co-own, crone, drone, enthrone, flown, foreknown, foreshown, groan, grown, half-tone, home-grown, hone, Joan, known, leone, loan, lone, moan, Mon, mown, ochone, outflown, outgrown, own, phone, pone, prone, Rhône, roan, rone, sewn, shown, Simone, Sloane, Soane, sone, sown, stone, strown, throne, thrown, tone, trombone, Tyrone, unbeknown, undersown, zone •Dione • backbone • hambone •breastbone • aitchbone •tail bone, whalebone •cheekbone • shin bone • hip bone •wishbone • splint bone • herringbone •thigh bone • jawbone • marrowbone •knuckle bone • collarbone •methadone • headphone • cellphone •heckelphone • payphone • Freefone •radio-telephone, telephone •videophone • francophone •megaphone • speakerphone •allophone • Anglophone • xylophone •gramophone • homophone •vibraphone • microphone •saxophone • answerphone •dictaphone •sarrusophone, sousaphone •silicone • pine cone • snow cone •flyblown • cyclone • violone •hormone • pheromone • Oenone •chaperone • progesterone •testosterone

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"silicone." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

"silicone." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O233-silicone.html

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Free newspaper and magazine articles

Silicone: integration becomes development trend.(Fine and Specialty)
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Silicone-modified maintenance coatings.
Magazine article from: Plant Engineering; 4/25/1985
Silicones offer versatility to meet global personal care trends: these...
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