- talc, talcum - a fine grained mineral having a soft soapy feel and consisting of hydrated magnesium silicate; used in a variety of products including talcum powder
--1 is a kind of mineral
--1 is a substance of talcum, talcum powder
--1 has particulars:soapstone, soaprock, soap-rock, steatite; French chalk; rensselaerite - talcum, talcum powder - a toilet powder made of purified talc and usually scented; absorbs excess moisture
--2 is a kind of toilet powder, bath powder, dusting powder
--2 has substances: talc, talcum