Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A bony or cartilaginous Y-shaped arch that projects from the posterior side of a vertebral body and encloses the spinal cord.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a structure arising dorsally from a vertebral centrum and enclosing the spinal cord

Etymologies

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Examples

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