noun.
One of the bony plates that lie upon and fuse with the summit of the spinous process and take part in the formation of the carapace of a turtle.
Pertaining to nerves or the nervous system at large; nervous.
Specifically, of or relating to the cerebrospinal nervous system of a vertebrate.
Situated on that side of the body, with reference to the vertebral axis, on which the brain and spinal cord lie; dorsal or tergal: opposed to ventral, sternal, visceral, or hemal.
In physiology, done or taking place in the nerves.