Water-strider definitions

Any of various predatory hemipteran insects of the family Gerridae, having long slender legs with which they support themselves on the surface of water.
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Any of an insect-eating family (Gerridae) of usually slender-bodied hemipteran insects, having long legs with which they glide swiftly on the surface film of calm waters, esp. of ponds and streams.
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Any of a number of predatory insects in the family Gerridae, which rely on surface tension to walk on top of water.
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