/ Dictionary / Index I iliac: Meaning and Definition of Find definitions for: il•i•ac Pronunciation: (il'ē-ak"), [key] — adj. of, pertaining to, or situated near the ilium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: iliac (Thesaurus) Ilhéus iliac artery Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language