/ Dictionary / Index M MKSA: Meaning and Definition of Find definitions for: MKSA Pronunciation: [key] meter-kilogram-second-ampere. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. MKS mkt. Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language