Water-scorpion definition

Any of various aquatic predatory insects of the family Nepidae, having a long breathing tube projecting from the end of the abdomen.
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Any of a family (Nepidae) of elongated, sticklike, four-winged hemipteran insects, characterized by a long breathing tube at the anal end of the abdomen.
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Any long-legged aquatic insect of the family Nepidae, especially the species Nepa cinerea.
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Other Word Forms

Noun

Singular:
water-scorpion
Plural:
water-scorpions