book louse

noun

Definition of book louse

: any of various tiny usually wingless insects (order Psocoptera and especially genus Liposcelis) that feed on organic matter and especially mold, usually inhabit damp areas, and are often found in stored papers, books, and grains

First Known Use of book louse

1753, in the meaning defined above

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The first known use of book louse was in 1753

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Cite this Entry

“Book louse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/book%20louse. Accessed 13 Aug. 2020.

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