- 1. Relating to any spine or spinous process. 2. Relating to the vertebral column. SYN: rachial, rachidial, rachidian, spinalis. [L. spinalis]
* * *spi·nal 'spīn-əl adj1) of, relating to, or situated near the spinal column2 a) of, relating to, or affecting the spinal cord <\spinal reflexes>b) having the spinal cord functionally isolated (as by surgical section) from the brain <experiments on \spinal animals>c) used for spinal anesthesia <a \spinal anesthetic>3) made for or fitted to the spinal column <a \spinal brace>spi·nal·ly -ē advspinal n a spinal anesthetic
* * *spi·nal (spiґnəl) [L. spinalis] 1. pertaining to a spine. 2. pertaining to the vertebral column; called also rachial, rachidial, and rachidian. 3. pertaining to the spinal cord's functioning independently from the brain; see under animal and reflex.
Medical dictionary. 2011.