Definitions for water bug
Random House Webster's College Dictionary
wa′ter bug`(n.)
any of various aquatic bugs, as of the family Belostomatidae.
Category: Entomology
(loosely) a very large, relatively slow cockroach, as the American cockroach.
Category: Entomology
Origin of water bug:
1740–50
Princeton's WordNet
water bug(noun)
a true bug: large aquatic bug adapted to living in or on the surface of water
German cockroach, Croton bug, crotonbug, water bug, Blattella germanica(noun)
small light-brown cockroach brought to United States from Europe; a common household pest
Wiktionary
water bug(Noun)
Any member of the infraorder Nepomorpha, the true water bugs.
water bug(Noun)
Any of various other true bugs that live around water.
water bug(Noun)
The American cockroach, Periplaneta americana.
water bug(Noun)
The Oriental cockroach, Blatta orientalis.
Webster Dictionary
Water bug
the Croton bug
Water bug
any one of numerous species of large, rapacious, aquatic, hemipterous insects belonging to Belostoma, Benacus, Zaitha, and other genera of the family Belostomatidae. Their hind legs are long and fringed, and act like oars. Some of these insects are of great size, being among the largest existing Hemiptera. Many of them come out of the water and fly about at night
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