smoke proof

1 of 2

noun

: a test impression of a typefounder's punch obtained by blackening it in a flame and stamping it on paper

smokeproof

2 of 2

adjective

: impermeable to smoke

specifically : designed to restrict the spread of smoke through a building

—used especially of a door or partition

Word History

Etymology

Noun

smoke entry 1 + proof, noun

Adjective

smoke entry 1 + proof, adjective

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