Definition:
- (a.) Having a backbone, or vertebral column, containing the spinal marrow, as man, quadrupeds, birds, amphibia, and fishes.
- (a.) Contracted at intervals, so as to resemble the spine in animals.
- (a.) Having movable joints resembling vertebrae; -- said of the arms ophiurans.
- (a.) Of or pertaining to the Vertebrata; -- used only in the form vertebrate.