gas mask: meaning, definition, pronunciation and examples

It is most commonly written as two separate words: 'gas mask'. The hyphenated form 'gas-mask' is sometimes used when it functions as a modifier (e.g., gas-mask drill), and the closed form 'gasmask' is less common but occasionally seen.

In strict technical terms, all gas masks are respirators, but not all respirators are gas masks. 'Respirator' is a broader term for any device that protects the wearer from inhaling hazards. A 'gas mask' specifically protects against gaseous chemicals and vapours, often using a canister filter. Simple respirators may only filter particles like dust.

Not in standard usage. The noun is almost never verbed formally. You would say 'put on a gas mask' or 'don a gas mask'. Informal, jargon-heavy contexts (like military slang) might use phrases like 'gas up' or 'mask up'.

This reflects a systematic phonological difference between the two accents: the 'BATH-TRAP' split. In British English (Received Pronunciation), the vowel in words like 'bath', 'grass', and 'mask' is the long /ɑː/. In General American, it is the short /æ/.

A protective mask with a filter, worn over the face to prevent the inhalation of poisonous gases or airborne particles.

Gas mask is usually formal to neutral; primarily technical, historical, and safety-related contexts. in register.

Gas mask: in British English it is pronounced /ˈɡæs ˌmɑːsk/, and in American English it is pronounced /ˈɡæs ˌmæsk/. Tap the audio buttons above to hear it.