/ Dictionary / Index C CMOS: Meaning and Definition of Find definitions for: CMOS Pronunciation: (sē'môs", -mos"), [key] — n. Electronics. complementary metal oxide semiconductor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. c'mon CMP Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language