Pronunciation: (mē'tur-kil'u-gram"sek'und-am'pēr, -am-pēr'), [key]
of or pertaining to the system of units in which the meter, kilogram, second, and ampere are the principal units of length, mass, time, and electric current. Abbr.: mksa, MKSA
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.