smoke proof

noun

Definition of smoke proof

 (Entry 1 of 2)

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

smokeproof

adjective

Definition of smokeproof (Entry 2 of 2)

: impermeable to smoke specifically : designed to restrict the spread of smoke through a building used especially of a door or partition

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History and Etymology for smoke proof

Noun

smoke entry 1 + proof, noun

Adjective

smoke entry 1 + proof, adjective

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