[talk] 
noun, verb, talcked or talced [talkt] , talck⋅ing or talc⋅ing [tal-king] .| 1. | Also, tal⋅cum [tal-kuh m] . 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. |
| 2. | talcum powder. |
| 3. | to treat or rub with talc. |
| talc (tālk) n. A fine-grained white, greenish, or gray mineral, Mg3Si4O10(OH)2, having a soft soapy feel and used in talcum and face powder, as a paper coating, and as a filler for paint and plastics. tr.v. talcked or talced, talck·ing or talc·ing, talcs To apply this substance to (a photographic plate, for example). [French, from Medieval Latin talcum and Old Spanish talco, both from Arabic ṭalq, from Persian talk.] |
talc (tālk)
n.
A fine-grained white, greenish, or gray mineral, having a soft soapy feel and used in talcum and face powder. Also called talcum.
| talc (tālk) Pronunciation Key
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. |