airproof

adjective
air·​proof | \ ˈer-¦prüf \

Definition of airproof

 (Entry 1 of 2)

2 : made impervious to air
air·​proof | \ ˈer-¦prüf \

Definition of airproof (Entry 2 of 2)

1 : to make airtight
2 : to protect from the injurious action of air

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First Known Use of airproof

Adjective

1758, in the meaning defined at sense 1

Transitive verb

1857, in the meaning defined at sense 1

History and Etymology for airproof

Adjective

air entry 3 + proof

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Time Traveler for airproof

Time Traveler

The first known use of airproof was in 1758

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Cite this Entry

“Airproof.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/airproof. Accessed 16 Jan. 2021.

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