hemivertebra

[hĕm′ĭ-vûrtə-brə]

n.

A congenital defect of the spine in which one side of a vertebra fails to develop completely.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.