/ Dictionary / Index T treefish: Meaning and Definition of Find definitions for: tree•fish Pronunciation: (trē'fish"), [key] — pl. -fish•es, -fish. a rockfish, Sebastes serriceps, of waters off southern California, marked with black bands. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tree fern tree-form frame Related Content Daily Word Quiz: weary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language