/ Dictionary / Index C circuitry: Meaning and Definition of Find definitions for: cir•cuit•ry Pronunciation: (sûr'ki-trē), [key] — n. the science of designing electric or electronic circuits. the circuits themselves. the components of such circuits. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: circuitry (Thesaurus) circuit rider circuity Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language