/ Dictionary / Index C calmative: Meaning and Definition of Find definitions for: calm•a•tive Pronunciation: (kä'mu-tiv, kal'mu-), [key] — Med. Med. —adj. having a sedative effect. —n. a calmative agent. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. calm calmodulin Related Content Daily Word Quiz: reiterate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language