/ Dictionary / Index P prebasic molt: Meaning and Definition of Find definitions for: pre•ba'sic molt' Pronunciation: (prē-bā'sik), [key] — Ornith. Ornith. the molt by which most birds replace all of their feathers, usually occurring annually after the breeding season. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. preaxial prebend Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language