armyworm

A1R1M3Y4W4O1R1M3

noun

The larva of any of the genera Spodoptera and Mythimna of noctuid moths, which typically feed in large, destructive groups on food crops and grasses.

Similar
army wormPseudaletia unipuncta
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Meanings

nounarmyworm (plural armyworms)

plural armyworms · alternative army worm · alternative army-worm

  1. The larva of any of the genera Spodoptera and Mythimna of noctuid moths, which typically feed in large, destructive groups on food crops and grasses.

Synonyms & antonyms

nounnoctuid moth larvae that travel in multitudes destroying especially grass and grain

Similar
army wormPseudaletia unipuncta
Broader
caterpillar

nounmoth whose destructive larvae travel in multitudes

Similar
Pseudaletia unipuncta
Broader
noctuid mothnoctuidowlet moth

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

From army + worm.

Full word history & related roots →

Translations

Portuguese lagarta-do-cartucho
  • lagarta-do-cartuchothe larva of any of the genus Spodoptera etc. of noctuid moths
Cite this entry
APA

armyworm. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/armyworm

MLA

“armyworm.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/armyworm. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “armyworm,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/armyworm.

Source: armyworm on Wiktionary, CC BY-SA 4.0.