/ Dictionary / Index C caprolactam: Meaning and Definition of Find definitions for: cap•ro•lac•tam Pronunciation: (kap"rō-lak'tam), [key] — n. a white, water-soluble compound, CHNO, used to produce a type of nylon. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. caproic acid caprylic Related Content Daily Word Quiz: illegible Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language