/ Dictionary / Index A autocatalysis: Meaning and Definition of Find definitions for: au•to•ca•tal•y•sis Pronunciation: (ô"tō-ku-tal'u-sis), [key] — pl. -ses catalysis caused by a catalytic agent formed during a reaction. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: autocatalysis (Thesaurus) autocade autocatharsis Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language