Definition of "corn borer" []

• The larva of a European moth (Pyrausta nubilalis), now common in many areas of eastern North America, that feeds on and destroys corn and other plants, including potatoes and beans. Also called European corn borer. (noun)
• Any of various insect larvae similar to the corn borer that infest corn. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.