/ Dictionary / Index C coxa: Meaning and Definition of Find definitions for: cox•a Pronunciation: (kok'su), [key] — pl. cox•ae Seeinnominate bone. the joint of the hip. the first or proximal segment of the leg of insects and other arthropods. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: coxa (Thesaurus) cox coxalgia Related Content Daily Word Quiz: modify Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language