/ Dictionary / Index C carotid body: Meaning and Definition of Find definitions for: carot'id bod"y Pronunciation: [key] — Anat. Anat. a small mass of cells and nerve endings adjacent to the carotid sinus that, in response to chemical changes in the blood, adjusts the respiratory rate. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. carotid carotid sinus Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language