noun, plural book·lice [boo k-lahys] /ˈbʊkˌlaɪs/.
- any of numerous minute, wingless insects of the order Psocoptera, often living among books or papers.
noun plural -lice
- any small insect of the order Psocoptera, esp Trogium pulsatorium (common booklouse), a wingless species that feeds on bookbinding paste, etc