/ Dictionary / Index M meter-kilogram-second: Meaning and Definition of Find definitions for: me•ter-kil•o•gram-sec•ond Pronunciation: (mē'tur-kil'u-gram"sek'und), [key] — adj. of or pertaining to the system of units in which the meter, kilogram, and second are the principal units of length, mass, and time. Abbr.: mks, MKS Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. metered mail meter-kilogram-second-ampere Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language