/talk/ , n. , v. , talcked or talced /talkt/ , talcking or talcing /tal"king/ .
n.
1. Also, talcum /tal"keuhm/ . 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.
2. See talcum powder .
v.t.
3. to treat or rub with talc.
[ 1595-1605; talcum talq mica
talk ]