/ Dictionary / Index M moose: Meaning and Definition of Find definitions for: moose Pronunciation: (ms), [key] — pl. moose. a large, long-headed mammal, Alces alces, of the deer family, having circumpolar distribution in the Northern Hemisphere, the male of which has enormous palmate antlers. (cap.) a member of a fraternal and benevolent organization Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: moose (Thesaurus) moor myrtle Moosehead Lake Related Content Daily Word Quiz: overture Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language