Breadcrumb Home > Dictionary > Index C 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. Hard Labor Current Events This Week: June 2023 Languages Spoken in Each Country of the World User's Guide to Environmental Language The Washington Monument: Facts, History & Profile LGBT Pride Month | Biographies of Notable Individuals Civilian Labor Force ✖ Related Content Daily Word Quiz: poetaster Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language