Vertebra

·noun One of the serial segments of the spinal column.

II. Vertebra ·noun One of the central ossicles in each joint of the arms of an Ophiuran.

vertebra
vertē̆bra, ae, f. [verto], a joint. I In gen., Cels. 8, 1, Plin. 11, 46, 106, § 255; Sen. Ep. ...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.