Definition of "vertebra" []

• Any of the bones or cartilaginous segments forming the spinal column. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Very good explanation of why the vertebra is probably "lost", BTW."
• "In the previous post I introduced the long, tedious, much-delayed technical project on MIWG. 7306, a giant brachiosaurid cervical vertebra from the Isle of Wight."
• "A giant brachiosaurid cervical vertebra from the Wessex Formation (Early Cretaceous) of southern England."