Definition of CMOS in English:

CMOS

noun

Electronics
  • 1[often as modifier] A technology for making low power integrated circuits.

    ‘a CMOS integrated circuit’
    1. 1.1A chip built using CMOS technology.
      ‘within a few weeks the CMOS loses the system set-up as well as date and time’

Origin

1980s: from Complementary Metal Oxide Semiconductor.