Surgical removal of the bony arches on one or more vertebrae

WordNet Word definitions in WordNet
n. surgical removal of the bony arches on one or more vertebrae

Wiktionary Word definitions in Wiktionary
n. (context surgery English) The surgical procedure to remove the bony arch or lamina from one or more vertebrae.

Wikipedia Word definitions in Wikipedia
A laminectomy is a surgical procedure that removes a portion of the vertebral bone called the lamina . The back muscles are pushed aside rather than cut and the parts of the vertebra adjacent to the lamina are left intact. Recovery occurs within a few days. ...