/ Thesaurus / M Synonyms of manduca sexta Find synonyms for: Noun1. tobacco hornworm, tomato worm, Manduca sexta, caterpillarusage: large green white-striped hawkmoth larva that feeds on tobacco and related plants; similar to tomato hornworm2. Manduca sexta, hawkmoth, hawk moth, sphingid, sphinx moth, hummingbird mothusage: moth whose larvae are tobacco hornwormsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: abdicate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language