/ Dictionary / Index P parathyroidectomy: Meaning and Definition of Find definitions for: par•a•thy•roid•ec•to•my Pronunciation: (par"u-thī"roi-dek'tu-mē), [key] — pl. -mies. the excision of a parathyroid gland. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. parathyroid parathyroid extract Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language