/ Dictionary / Index J jejunectomy: Meaning and Definition of Find definitions for: je•ju•nec•to•my Pronunciation: ( ji-j-nek'tu-mē, jē"joo-), [key] — pl. -mies. excision of part or all of the jejunum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. jejune jejuno- Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language