wood louse

noun

Definition of wood louse

: a terrestrial isopod crustacean (suborder Oniscoidea) with a flattened elliptical body often capable of being rolled into a ball called also pill bug, sow bug

First Known Use of wood louse

1611

in the meaning defined above

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WOOD LOUSE Defined for English Language Learners

wood louse

Definition of wood louse for English Language Learners

  • : a small, gray insect that lives under stones and in other dark, wet places


WOOD LOUSE Defined for Kids

wood louse

noun

Definition of wood louse for Students

: a tiny flat gray animal that is a crustacean usually found living under stones or bark

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