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noun, plural spi·nae [spahy-nee] /ˈspaɪ ni/. Anatomy, Zoology.
  1. a spine or spinelike projection.

Origin of spina

1350–1400; Middle English < Latin spīna thorn, backbone; see spine
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for spinae

Historical Examples

  • The children are called "Spinae ac vepres, nec nominandi proles."

    Christianity and Islam in Spain (756-1031)

    Charles Reginald Haines

spinae in Medicine


  1. Relating to the anus and the spinal cord.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.