cutworm definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
any of a number of soil-dwelling caterpillars (family Noctuidae) that feed on young plants of cabbage, corn, etc., cutting them off at ground level
cutworm definition by American Heritage Dictionary
The larva of various moths of the family Noctuidae that feed on and destroy a wide variety of plants.
Origin: So called because many species eat through stems of plants.