/ Dictionary / Index F flatheaded borer: Meaning and Definition of Find definitions for: flat'headed bor'er Pronunciation: [key] the larva of a metallic wood-boring beetle, having an expanded and flattened anterior end. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. flatheaded apple tree borer flatiron Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language