单词 | talc |
释义 | talc[ talk ] / tælk / SEE SYNONYMS FOR talc ON THESAURUS.COM nounAlso tal·cum [tal-kuhm]. /ˈtæl kəm/. a green-to-gray, soft mineral, hydrous magnesium silicate, Mg3(Si4O10)(OH)2, unctuous to the touch, and occurring usually in foliated or compact masses, used in making lubricants, talcum powder, electrical insulation, etc. talcum powder. verb (used with object), talcked or talced [talkt], /tælkt/, talck·ing or talc·ing [tal-king]. /ˈtæl kɪŋ/.to treat or rub with talc. Origin of talc1595–1605; <Medieval Latin talcum<Arabic ṭalq mica <Persian talk Words nearby talcTalavera, Talavera de la Reina, talayot, talbot, Talbotype, talc, Talca, Talcahuano, talcose, talcosis, talcum Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for talcBritish Dictionary definitions for talctalc / (tælk) / noun Also: talcumSee talcum powder a white, grey, brown, or pale green mineral, found in metamorphic rocks. It is used in the manufacture of talcum powder and electrical insulators. Composition: hydrated magnesium silicate. Formula: Mg 3 Si 4 O 10 (OH) 2 . Crystal structure: monoclinic verb talcs, talcking, talcked, talcs, talcing or talced(tr) to apply talc to Derived forms of talctalcose or talcous, adjectiveWord Origin for talcC16: from Medieval Latin talcum, from Arabic talq mica, from Persian talk Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for talctalc [ tălk ] n.A fine-grained white, greenish, or gray mineral, having a soft soapy feel and used in talcum and face powder.talcum The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for talctalc [ tălk ] A very soft white, greenish, or gray monoclinic mineral usually occurring as massive micalike flakes in igneous or metamorphic rocks. It has a soapy texture and is used in face powder and talcum powder, for coating paper, and as a filler in paints and plastics. Chemical formula: Mg3Si4O10(OH)2. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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