water beetle

noun

any of various aquatic beetles, as a predaceous diving beetle.

Origin of water beetle

First recorded in 1660–70

Words nearby water beetle

water ballet, water bath, water bear, water bearer, water bed, water beetle, water bench, water bird, water biscuit, water blister, water boat

Example sentences from the Web for water beetle

British Dictionary definitions for water beetle

water beetle

noun

any of various beetles of the families Dysticidae, Hydrophilidae, etc, that live most of the time in freshwater ponds, rivers, etc See whirligig beetle