Dytiscidae
(redirected from Predaceous diving beetle)Also found in: Thesaurus, Encyclopedia.
Related to Predaceous diving beetle: whirligig beetle, Water scavenger beetle
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Noun | 1. | ![]() arthropod family - any of the arthropods Coleoptera, order Coleoptera - beetles water beetle - any of numerous aquatic beetles usually having a smooth oval body and flattened hind legs for swimming |