/ Dictionary / Index M mackerel shark: Meaning and Definition of Find definitions for: mack'erel shark" Pronunciation: [key] any of several fierce sharks of the family Lamidae, including the great white shark and the mako. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mackerel gull mackerel sky Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language