/ Dictionary / Index C cankerworm: Meaning and Definition of Find definitions for: can•ker•worm Pronunciation: (kang'kur-wûrm"), [key] — n. the striped, green caterpillar of any of several geometrid moths: a foliage pest of various fruit and shade trees, as Paleacrita vernataand Alsophila pometariaSee illus. under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cankerworm (Thesaurus) canker sore Canlit Related Content Daily Word Quiz: abstain Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language