/ Dictionary / Index F flathead catfish: Meaning and Definition of Find definitions for: flat'head cat'fish Pronunciation: [key] a yellow and brown catfish, Pylodictus olivaris, common in the central U.S., having a flattened head and a projecting lower jaw. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. flat head flatheaded apple tree borer 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