water beetle

Noun

 * 1) Any of various freshwater aquatic beetles that have a smooth oval body and flattened hind legs adapted for swimming, and that carry an air bubble underneath their abdomens.

Translations

 * Arabic: خنفساء الماء
 * Central Sierra Miwok: čataŋ·aŋ·a-
 * Irish: ciaróg uisce, doirb
 * Macedonian: во́ден бу́мбар
 * Vietnamese: bọ nước