/ Dictionary / Index L laminectomy: Meaning and Definition of Find definitions for: lam•i•nec•to•my Pronunciation: (lam"u-nek'tu-mē), [key] — pl. -mies. the surgical removal of part of the posterior arch of a vertebra to provide access to the spinal canal, as for the excision of a ruptured disk. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: laminectomy (Thesaurus) lamination laminitis Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language