/ Dictionary / Index B B.M.S.: Meaning and Definition of Find definitions for: B.M.S. Pronunciation: [key] Bachelor of Marine Science. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bms (Thesaurus) BMR B.M.T. Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language