/ Dictionary / Index W walrus: Meaning and Definition of Find definitions for: wal•rus Pronunciation: (wôl'rus, wol'-), [key] — pl. -rus•es, -rus. a large marine mammal, Odobenus nosmarus, of arctic seas, related to the seals, and having flippers, a pair of large tusks, and a tough, wrinkled skin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: walrus (Thesaurus) Walras walrus mustache Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language