Breadcrumb Home > Dictionary > Index C Cite cactus moth: Meaning and Definition of Find definitions for: cac'tus moth" Pronunciation: [key] a moth, Cactoblastis cactorum, native to South America and introduced into Australia to control prickly pear cactus, on which the larvae feed. Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease. cactus geranium cactus wren TrendingHere are the facts and trivia that people are buzzing about. February 2021 Current Events: US News The Berlin Conference and the Partition of Africa The Implied Powers of Congress The Women's March on Versailles Keeping Your Brain Active in a COVID-19 World The Manchu Related Content Daily Word Quiz: suigeneris Analogy of the Day: Today?s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language