/ Dictionary / Index R roundheaded apple tree borer: Meaning and Definition of Find definitions for: round'headed ap'ple tree" bor"er. Pronunciation: [key] See(def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. roundheaded roundheels Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language