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talc

American  
[talk] / tælk /

noun

  1. Also talcum a green-to-gray, soft mineral, hydrous magnesium silicate, Mg 3 (Si 4 O10 )(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.


verb (used with object)

talcs, present (3rd person singular) talced, past participle, past talcked, past participle, past talcing, present participle talcking present participle
  1. to treat or rub with talc.

talc British  
/ tælk /

noun

  1. See talcum powder

  2. 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: Mg 3 Si 4 O 10 (OH) 2 . Crystal structure: monoclinic

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. (tr) to apply talc to

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
talc Scientific  
/ tălk /
  1. 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: Mg 3 Si 4 O 10 (OH) 2 .


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Etymology

Origin of talc

1595–1605; < Medieval Latin talcum < Arabic ṭalq mica < Persian talk

Vocabulary lists containing talc

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

She was diagnosed with ovarian cancer in 2024 after using talc for decades.

From BBC Mar. 18, 2026

Lefevres says, following scientific analysis of cosmetic talc products, the memo recommended minimising the use of tremolite until substantial evidence showed it had no adverse effects.

From BBC Mar. 18, 2026

Johnson & Johnson has faced thousands of lawsuits linking its talc baby powder to cancer.

From The Wall Street Journal Dec. 23, 2025

Johnson & Johnson retained responsibility for talc litigation in the two countries after the spinoff, but Kenvue is responsible for talc litigation elsewhere.

From The Wall Street Journal Nov. 4, 2025

He is comforted by the talc smell of her housedresses mixed with the sunbaked smell of her skin, the perfumy smell of her party dresses.

From "How the García Girls Lost Their Accents" by Julia Alvarez

After receiving inquiries from Reuters, the ACS in early December revised its website to remove the assurance that cosmetic talcs are free of asbestos.

From Reuters Dec. 14, 2018

Food and Drug Administration was considering a limit on asbestos in talcs.

From Reuters Dec. 14, 2018

Wide-shouldered, hairy-chested William Nassaur, whose Courtley, Ltd. shaving soaps, lotions, talcs, and bubble baths had already deodorized and sweetened thousands of U.S. males, got set last week to waft his perfume worldwide.

From Time Magazine Archive

Then the three brothers took, each of them, a princess with him on his horse, and they all rode together back to the old King, telling talcs and singing songs as they went.

From Old Peter's Russian Tales by Mitrokhin, Dmitri

"How can you ask that? What do you imagine I'm doing? I am talcing care of your brother. I am taking care of Bran."

From "A Game of Thrones" by George R.R. Martin

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