Noun armyworm has 3 senses
- armyworm, army worm, Pseudaletia unipuncta - noctuid moth larvae that travel in multitudes destroying especially grass and grain
--1 is a kind of caterpillar
--1 is a member of Pseudaletia, genus Pseudaletia
- armyworm, Pseudaletia unipuncta - moth whose destructive larvae travel in multitudes
--2 is a kind of noctuid moth, noctuid, owlet moth
--2 is a member of Pseudaletia, genus Pseudaletia
- armyworm - larva of fungus gnat; march in large companies in regular order
--3 is a kind of fungus gnat, sciara, sciarid
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