spina

[ spahy-nuh ]
/ ˈspaɪ nə /

noun, plural spi·nae [spahy-nee]. /ˈspaɪ ni/. Anatomy, Zoology.

a spine or spinelike projection.

QUIZZES

DON’T VACILLATE! VANQUISH THIS WORD OF THE DAY QUIZ!

It’d be a real faux pas to miss this quiz on the words from August 3–9, 2020!
Question 1 of 7
What does “vacillate” mean?

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. 2020

Example sentences from the Web for spina

Medical definitions for spina

spina
[ spīnə ]

n. pl. spi•nae (-nē)

A spine-shaped or sharp thornlike anatomical process.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.