pith

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pith

(pith),
1. The center of a hair.
2. The spinal cord and medulla oblongata.
3. To pierce the medulla of an animal with a sharp instrument introduced at the base of the skull.
[A.S. pitha]
Farlex Partner Medical Dictionary © Farlex 2012

pith

(pĭth)
n.
a. The soft inner substance of a feather or hair.
b. The spinal cord.
tr.v. pithed, pithing, piths
To sever or destroy the spinal cord of, usually by inserting a needle into the vertebral canal.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

pith

(pith)
1. The center of a hair.
2. The spinal cord and medulla oblongata.
3. To pierce the medulla of an animal with a sharp instrument introduced at the base of the skull.
[A.S. pitha]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

pith

or

medulla

the core of a DICOTYLEDON stem, containing PARENCHYMA cells that have a storage function.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in classic literature ?
It is the effect of anything completely and consummately artificial, in human shape, that the person impresses us as an unreality and as having hardly pith enough to cast a shadow upon the floor.
His eyes took in my large pith helmet, my khaki jacket, and bandoleers of cartridges, the two revolvers swinging at my hips, the large rifle resting against my body.
The axe struck deep into the very pith; the Tree fell to the earth with a sigh; he felt a pang--it was like a swoon; he could not think of happiness, for he was sorrowful at being separated from his home, from the place where he had sprung up.