/ Thesaurus / S Synonyms of samia cynthia Find synonyms for: Noun1. ailanthus silkworm, Samia cynthia, silkworm, giant silkworm, wild wilkwormusage: large green silkworm of the cynthia moth2. cynthia moth, Samia cynthia, Samia walkeri, giant silkworm moth, silkworm mothusage: large Asiatic moth introduced into the United States; larvae feed on the ailanthusWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language