spina

[spahy-nuh]

spi·na

[spahy-nuh]
noun, plural spi·nae [-nee] . Anatomy, Zoology.
a spine or spinelike projection.

Origin:
1350–1400; Middle English < Latin spīna thorn, backbone; see spine
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Spina is always a great word to know.
So is sweat gland. Does it mean:
the transparent anterior part of the external coat of the eye covering the iris and the pupil and continuous with the sclera
one of the minute, coiled, tubular glands of the skin that secrete sweat
American Heritage
Medical Dictionary

spina spi·na (spī'nə)
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.
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