spi'nal

Pertaining to the vertebral column, s. anesthesia. 1. Lo of sensation in the lower part of the body induced by the injection of a local anesthetic into the sheath of the lumbar portion of the spinal cord. 2. Localized lo of sensation in the region of the spine. s. apoplexy. See hematomyelia. s. curvature. A permanent deviation of some portion of the spinal column from its normal form. s. fluid, how to stain organisms; see in appendix, page 910. s. puncture. See lumbar puncture, under puncture. [Lat., spinal is. ]