/ Dictionary / Index C cervical plexus: Meaning and Definition of Find definitions for: cer'vical plex'us Pronunciation: [key] a network of nerves branching from the spinal nerves of the neck region and innervating the neck, chest, diaphragm, and part of the face. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cervical cap cervices 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