/ Dictionary / Index W wyvern: Meaning and Definition of Find definitions for: wy•vern Pronunciation: (wī'vurn), [key] — n. Heraldry. a two-legged winged dragon having the hinder part of a serpent with a barbed tail. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: wyvern (Thesaurus) Wythe X, x Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language