English Reference

Word

asbestos

Phoneticsas·bestos

US/æsˈbɛstəs/

UK/æsbˈɛstəs/

Definitions

01the mineral material

B2 · Science

n. a grey or white mineral that does not burn and was used to protect buildings from fire.

n. any of several fibrous mineral forms of magnesium silicate used for fireproofing and insulation.

“The workers had to wear special masks because the old ceiling contained asbestos.”

“Before its health risks were fully understood, asbestos was widely utilised in the construction industry for its exceptional thermal insulation and fire-retardant properties.”

Technical

Usage

Usually uncountable when referring to the material in general.

Synonyms

02resistance to heat

C2

n. a humorous way to describe a person who can touch hot things or eat very spicy food without pain.

n. a colloquial reference to a metaphorical physical immunity to heat or spicy sensations.

“He must have an asbestos mouth to eat those spicy peppers so easily.”

“The chef seemed to have asbestos fingers, casually retrieving the searingly hot ramekins from the oven without using a cloth.”

Humorous · Informal

Teaching tip

This is a creative, non-literal use of the word; learners should use it only in very casual or joking contexts.

03to cover with the material

C2 · Technical

v. to cover or protect something using asbestos.

v. to coat, line, or insulate a surface or structure with asbestos.

“In the past, engineers would asbestos the pipes to keep the heat inside.”

“The original specifications required the contractor to asbestos the boiler room walls to meet the fire safety standards of the era.”

Archaic · Technical

Usage

This verb use is largely historical due to modern safety bans.

Synonyms

Real-World Examples

“Asbestos killed my mum in her 40s – was her school to blame?”
BBC News · 25 Aug 2026

Etymology

Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Hellenic *ə- Ancient Greek ἀ- (a-) Proto-Indo-European *(s)gʷes-der.? Ancient Greek σβέννῡμῐ (sbénnūmĭ) Ancient Greek σβεστός (sbestós) Ancient Greek ἄσβεστος (ásbestos)bor. Latin asbestosbor. Old French abestosder. English asbestos From Old French abestos, from Latin asbestos, itself from Ancient Greek ἄσβεστος (ásbestos, “unquenchable, inextinguishable”), from ᾰ̓- (ă-, “not”) + σβέννῡμῐ (sbénnūmĭ, “I quench, quell”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry

Level
B2 · Upper Intermediate
Frequency
Frequent
Updated

Scan code

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