pith
[ pith ]
/ pɪθ /
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noun
verb (used with object)
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Origin of pith
Words nearby pith
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for pith
British Dictionary definitions for pith
pith
/ (pɪθ) /
noun
verb (tr)
Word Origin for pith
Old English pitha; compare Middle Low German pedik, Middle Dutch pitt (e)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for pith
pith
[ pĭth ]
n.
The soft inner substance of a hair.
Spinal cord or bone marrow. No longer in technical use.
v.
To sever or destroy the spinal cord of a vertebrate animal, usually by means of a needle inserted into the vertebral canal.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for pith
pith
[ pĭth ]
Noun
The soft, spongy tissue in the center of the stems of most flowering plants, gymnosperms, and ferns. Pith is composed of parenchyma cells. In plants that undergo secondary growth, such as angiosperms, the pith is surrounded by the vascular tissues and is gradually compressed by the inward growth of the vascular tissue known as xylem. In plants with woody stems, the pith dries out and often disintegrates as the plant grows older, leaving the stem hollow. See illustration at xylem.
Verb
To remove the pith from a plant stem.
To sever or destroy the spinal cord of an animal for the purpose of dissecting it, usually by inserting a needle into the spinal canal.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.