noun Le·thoc·er·us \lə̇ˈthäsərəs\

Definition of Lethocerus

  1. :  a genus of very large predaceous aquatic bugs (family Belostomatidae) — compare giant water bug

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Origin and Etymology of lethocerus

New Latin, from letho- (from Greek lētho-, from lēthē forgetfulness) + -cerus

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a rounded knoll or a ridge of ice

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