/ Dictionary / Index L lobectomy: Meaning and Definition of Find definitions for: lo•bec•to•my Pronunciation: (lō-bek'tu-mē), [key] — pl. -mies. excision of a lobe of an organ or gland. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lobectomy (Thesaurus) lobe lobed Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language