Breadcrumb Home > Dictionary > Index C Cite 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 TrendingHere are the facts and trivia that people are buzzing about. January 2021 Current Events: US News A History of the New Year Saying "Happy New Year!" Around the World Noble Titles and Ranks in a Monarchy The 5 Best Air Purifiers of 2020 How U.S. Presidential Elections Work Related Content Daily Word Quiz: bilious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language