tomato worm to·ma·to·worm uncommon noun 1. large green white-striped hawkmoth larva that feeds on tobacco and related plants; similar to tomato hornworm Synonymstobacco hornwormtomato wormManduca sexta Related words Broader terms caterpillar Parts Manduca WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
