/ Dictionary / Index A antiproliferative: Meaning and Definition of Find definitions for: an•ti•pro•lif•er•a•tive Pronunciation: (an"tē-prō-lif'u-rā"tiv, an"tī-), [key] — Pharm. Pharm. —adj. of or pertaining to a substance used to prevent or retard the spread of cells, esp. malignant cells, into surrounding tissues. —n. any such substance. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. antiproliferation antiproton 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