Definition of booklouse in English:

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Pronunciation: /ˈbʊklaʊs/

noun (plural booklice)

A minute insect that typically has reduced or absent wings, frequently found in buildings where it may cause damage to books and paper.
  • Liposcelidae and related families in the order Psocoptera: many species, in particular the common Liposcelis bostrychophilus
Example sentences
  • The presence of booklice can be quite an annoyance; however, they rarely cause significant damage to items.
  • The indoor ones, such as the booklouse are wingless, and can scrape away at books and other organic material.
  • Psocids or booklice are common but harmless insects between 1 mm and 2 mm long, which can survive in dry powdery foods.
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