Talcs

Part of speech: noun

Pronunciation: /tælks/

Definitions

1. A soft, white mineral composed of hydrated magnesium silicate used in powder form for its slippery feel and moisture-absorbing properties; a cosmetic ingredient to reduce friction and prevent rashes; and a powdered substance often employed in industrial processes for lubrication and as a filler
2. A naturally occurring mineral characterized by its softness and greasy texture, commonly processed into fine powder for personal care products such as body powders and baby powders; utilized in manufacturing for its lubricating and moisture-wicking qualities; and applied in various commercial applications including ceramics and paint
3. A silicate mineral known for its low hardness and smooth, soapy feel, frequently ground into a powder used to minimize moisture and friction on skin; included in cosmetics and pharmaceuticals for its protective effects; and incorporated into industrial materials to improve texture and workability

Etymology: "Talcs" is simply the plural of "talc", so the plural is the less interesting part here: it names more than one kind or sample of the mineral, which is how the word is usually used in trade and geology. The noun itself is the one with a journey behind it. Talc came into European languages through Arabic. The Arabic "ṭalq" was borrowed from Persian "talk", and the Persian word traces back to a Middle Persian term meaning "medicament", a substance used as medicine or ointment. So the mineral's name began as a word for a healing preparation, not for a rock. Medieval Arabic writers used the term for this soft, glistening substance, and it reached Old French as "talc" before passing into English. The word kept its link to pharmacy and cosmetics for centuries, which is why powdered talc still appears in toiletries, and why the mineral's name carries a trace of its original purpose.

Synonyms: talcum, talc powder