/ Dictionary / Index C coarctate: Meaning and Definition of Find definitions for: co•arc•tate Pronunciation: (kō-ärk'tāt, -tit), [key] — adj. (of a pupa) having the body enclosed in a hardened shell or puparium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: coarctate (Thesaurus) coaptation coarctation Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language