Difference between revisions of "vertebra"

From ZooTerms (Dictionary of Invertebrate Zoology)
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Latest revision as of 23:42, 13 September 2013

vertebra (noun; plural vertebrae; Latin vertebra, turning joint): (Echinodermata) 1. In Asteroidea, the fused pair of opposite ambulacrals, articulating with adjacent vertebrae by ball-and-socket joints. 2. In Ophiuroidea, enclosed by a ventral arm plate and skin or a dorsal arm plate.