any of several pyralid moths, as Pyrausta (ostrinia) nubilalis (European corn borer), the larvae of which bore into the stem and crown of corn and other plants.
Origin of corn borer
First recorded in 1915–20
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the larva of the pyralid moth Pyrausta nubilalis, native to S and Central Europe: in E North America a serious pest of maize
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012