smoke proof

1 of 2


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


2 of 2


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

Word History



smoke entry 1 + proof, noun


smoke entry 1 + proof, adjective

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Dictionary Entries Near smoke proof

smoke pot

smoke proof


Cite this Entry

“Smoke proof.” Dictionary, Merriam-Webster, Accessed 19 Jun. 2024.

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