air knife

noun

: a blade in a papermaking machine for removing excess coating from newly coated paper by means of an air blast

Word History

First Known Use

circa 1954, in the meaning defined above

Time Traveler
The first known use of air knife was circa 1954

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Dictionary Entries Near air knife

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Cite this Entry

“Air knife.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/air%20knife. Accessed 2 Apr. 2023.

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