Also, talcum
[tal-kuh m] /ˈtæl kəm/ (Show IPA). a green-to-gray, soft mineral, hydrous magnesium silicate, Mg 3 (Si 4 O 10)(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/ (Show IPA), talcking or talcing
[tal-king] /ˈtæl kɪŋ/ (Show IPA)
to treat or rub with talc.
See 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: Mg3Si4O10(OH)2. Crystal structure: monoclinic
verb talcs, talcking, talcked, talcs, talcing, talced
(transitive) to apply talc to

talc (tālk)
A fine-grained white, greenish, or gray mineral, having a soft soapy feel and used in talcum and face powder. Also called talcum.
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.


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  • Talcose

    adjective 1. containing or composed largely of talc.

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    talcosis tal·co·sis (tāl-kō’sĭs) n. pl. tal·co·ses (-sēz) A form of pneumoconiosis caused by the inhalation of talc mixed with silicates.

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