/ Dictionary / Index M mousefish: Meaning and Definition of Find definitions for: mouse•fish Pronunciation: (mous'fish"), [key] — pl. -fish, -fish•es. sargassumfish. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mouse-ear chickweed mousehole Related Content Daily Word Quiz: diurnal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language