/ Dictionary / Index S silkworm moth: Meaning and Definition of Find definitions for: silk'worm moth" Pronunciation: [key] any of several moths of the families Bombycidae and Saturniidae, the larvae of which are silkworms. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. silkworm silky Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language