giant water bug

noun

Definition of giant water bug 

: any of a family (Belostomatidae and especially genus Lethocerus) of very large predatory aquatic bugs capable of inflicting a painful bite

First Known Use of giant water bug

1901, in the meaning defined above

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The first known use of giant water bug was in 1901

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giant water bug

noun

Medical Definition of giant water bug 

: any of a family (Belostomatidae and especially genus Lethocerus) of very large predatory bug capable of inflicting a painful bite

More from Merriam-Webster on giant water bug

Britannica.com: Encyclopedia article about giant water bug

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