/ Dictionary / Index A arcuate: Meaning and Definition of Find definitions for: ar•cu•ate Pronunciation: (är'ky-it, -āt"), [key] — adj. bent or curved like a bow. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: arcuate (Thesaurus) Arcturus arcuation Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language