giant water bug


noun

See under water bug.

Definition for giant water bug (2 of 2)

water bug

noun

any of various aquatic bugs, as of the family Belostomatidae (giant water bug).
(loosely) a large cockroach, especially the American cockroach.

Origin of water bug

First recorded in 1740–50

British Dictionary definitions for giant water bug

water bug

noun

any of various heteropterous insects adapted to living in the water or on its surface, esp any of the family Belostomatidae (giant water bugs), of North America, India, and southern Africa, which have flattened hairy legs