You searched for: “cgs system
centimeter-gram-second system, CGS system
A system of measurement based on fundamental units of a centimeter for length, a gram for mass, and a second for time.

Introduced by the British Association for the Advancement of Science in 1874, it was the system commonly used in science for many years, until eventually replaced with the MKS system (meter-kilogram-second system) and then the International System of Units (SI).