CMOSDefinition of CMOS noun [often as modifier] Electronics a technology for making low power integrated circuits: a CMOS integrated circuit a chip built using CMOS technology: within a few weeks the CMOS loses the system set-up as well as date and timeOrigin: 1980s: from Complementary Metal Oxide SemiconductorCMOS in other Oxford dictionaries Definition of CMOS in the US English dictionary
