armyworm

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noun ar·my·worm \ˈär-mē-ˌwərm\

Definition of armyworm

  1. :  any of numerous moths whose larvae travel in multitudes from field to field destroying grass, grain, and other crops; especially :  the common armyworm (Pseudaletia unipuncta) of the eastern and central U.S. and Canada

1815

First Known Use of armyworm

1815


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