asbestos

American  

[as-bes-tuhs, az-] / æsˈbɛs təs, æz- /

Or asbestus

noun

1. Mineralogy. a fibrous mineral, either amphibole or chrysotile, formerly used for making incombustible or fireproof articles.

2. a fabric woven from asbestos fibers, formerly used for theater curtains, firefighters' gloves, etc.

3. Theater. a fireproof curtain.

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asbestos British  

/ -təs, æsˈbɛstɒs /

noun

1. 1. any of the fibrous amphibole and serpentine minerals, esp chrysotile and tremolite, that are incombustible and resistant to chemicals. It was formerly widely used in the form of fabric or board as a heat-resistant structural material

   2. ( as modifier )

      asbestos matting

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asbestos Scientific  

/ ăs-bĕs′təs /

1. Any of several fibrous mineral forms of magnesium silicate. Asbestos is resistant to heat, flames, and chemical action. Some forms have been shown to cause lung diseases. For this reason, asbestos is no longer used to make insulation, fireproofing material, and brake linings.

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Other Word Forms

• asbestine adjective
• asbestoid adjective
• asbestoidal adjective
• asbestous adjective
• nonasbestine adjective

Etymology

Origin of asbestos

First recorded in 1350–1400; from Latin, from Greek: literally, “unquenched, inextinguishable” from a- a- ⁶ + sbestós “quenched, extinguished” (from sbennýnai “to quench”); replacing Middle English asbeston, albeston, from Middle French, from Latin

Explanation

Asbestos is a fibrous mineral used mainly in making fireproof material. Inhaling asbestos can cause health problems such as lung cancer. Have you ever heard about people removing asbestos from a building? That's because this material — which is a fibrous amphibole used because it's fireproof — has been found to be very bad for people's health when inhaled. If you inhale bits of asbestos, which flake off over time, you could get lung cancer, a disease caused asbestosis, or other respiratory problems. Like a lot of things, it took time for people to realize asbestos was doing more harm than good.

Example Sentences

He began gaining renown as a lawyer in an era when asbestos cases were swamping the U.S. courts.

From The Wall Street Journal • Mar. 28, 2026

To visualize microscopic asbestos fibers in talcum powder, he brought a bale of hay into a courtroom and dropped a needle into the blades.

From The Wall Street Journal • Mar. 28, 2026

Under the bill, however, insurers would be required to cover testing for lead, asbestos and other contaminants that have been found in soot, char and ash inside homes after a wildfire.

From Los Angeles Times • Mar. 19, 2026

He said apprentices would have "snowball" fights with asbestos and he knew of two women who died having probably inhaled particles while washing their husband's work clothes.

From BBC • Mar. 11, 2026

She was looking up at the ceiling when I came in, listening to the scrambling and pattering of feet scurrying across the asbestos tiles overhead.

From "The Wednesday Wars" by Gary D. Schmidt