/ Dictionary / Index M military science: Meaning and Definition of Find definitions for: mil'itary sci'ence Pronunciation: [key] the study of the causative factors and tactical principles of warfare. an academic course dealing with these factors and principles. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. military school militate Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language