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Meaning of armyworm

ar•my•worm

Pronunciation: (är'mē-wûrm"), [key]
— n.
  1. the caterpillar of a noctuid moth, Pseudaletia unipuncta, that often travels in large numbers over a region, destroying crops of wheat, corn, etc.
  2. any of the larvae of several related moths having similar habits.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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