/ Dictionary / Index E external jugular vein: Meaning and Definition of Find definitions for: exter'nal jug'ular vein". Pronunciation: [key] See under(def. 1b). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. externalizer external relation Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language