/ Dictionary / Index P Polyphemus moth: Meaning and Definition of Find definitions for: Pol'yphe'mus moth' Pronunciation: [key] a large, yellowish-brown American silkworm moth, Antheraea polyphemus, having a prominent eyespot on each hind wing and feeding on cherry, apple, and other trees. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Polyphemus polyphenol Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language