meter-kilogram-second
[ mee-ter-kil-uh-gram-sek-uh nd ]
/ ˈmi tərˈkɪl əˌgræmˈsɛk ənd /
adjective
of or relating to the system of units in which the meter, kilogram, and second are the principal units of length, mass, and time. Abbreviation: mks, MKS
Origin of meter-kilogram-second
First recorded in 1935–40