Dictionary![]() ![]() corn' ear"wormPronunciation: (ēr'wûrm"), [key] the larva of a cosmopolitan noctuid moth, Heliothis zea, that is highly destructive to crops, esp. corn, cotton, and tomato. Also called bollworm, cotton bollworm, tomato fruitworm. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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