/ Dictionary / Index C controlled-release: Meaning and Definition of Find definitions for: con•trolled-re•lease Pronunciation: (kun-trōld'ri-lēs'), [key] — adj. (of a substance, as a medicine or insecticide) released or activated at predetermined intervals or gradually over a period of time. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. controllable-pitch controlled substance Related Content Daily Word Quiz: lyre Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language