\Pol`y*phe"mus\, n. [L. Polyphemus the one-eyed
Cyclops who was blinded by Ulysses.] (Zo["o]l.)
A very large American moth ({Telea polyphemus}) belonging to
the Silkworm family ({Bombycid[ae]}). Its larva, which is
very large, bright green, with silvery tubercles, and with
oblique white stripes on the sides, feeds on the oak,
chestnut, willow, cherry, apple, and other trees. It produces
a large amount of strong silk. Called also {American
silkworm}.