/ Dictionary / Index A adduction: Meaning and Definition of Find definitions for: ad•duc•tion Pronunciation: (u-duk'shun), [key] — n. the action of an adducent muscle. the act of adducing. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: adduction (Thesaurus) adduct adductor Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language