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Definition of pith - 8 dictionary results

pith

  [pith]
Use pith in a Sentence
–noun
1. Botany. the soft, spongy central cylinder of parenchymatous tissue in the stems of dicotyledonous plants.
2. Zoology. the soft inner part of a feather, a hair, etc.
3. the important or essential part; essence; core; heart: the pith of the matter.
4. significant weight; substance; solidity: an argument without pith.
5. Archaic. spinal cord or bone marrow.
6. Archaic. strength, force, or vigor; mettle: men of pith.
–verb (used with object)
7. to remove the pith from (plants).
8. to destroy the spinal cord or brain of.
9. to slaughter, as cattle, by severing the spinal cord.
Origin:
bef. 900; ME; OE pitha; c. D pit. See pit 2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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pith   (pĭth)   
n.  
  1. Botany The soft, spongelike, central cylinder of the stems of most flowering plants, composed mainly of parenchyma.
  2. Zoology The soft inner substance of a feather or hair.
  3. The essential or central part; the heart or essence. See Synonyms at substance.
  4. Strength; vigor; mettle.
  5. Significance; importance.
  6. Archaic Spinal cord or bone marrow.
tr.v.   pithed, pith·ing, piths
  1. To remove the pith from (a plant stem).
  2. To sever or destroy the spinal cord of, usually by inserting a needle into the vertebral canal.
  3. To kill (cattle) by cutting the spinal cord.

[Middle English, from Old English pitha.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Pith

Pith\, n. [AS. pi?a; akin to D. pit pith, kernel, LG. peddik. Cf. Pit a kernel.]

1. (Bot.) The soft spongy substance in the center of the stems of many plants and trees, especially those of the dicotyledonous or exogenous classes. It consists of cellular tissue.

2. (a) (Zo["o]l.) The spongy interior substance of a feather. (b) (Anat.) The spinal cord; the marrow.

3. Hence: The which contains the strength of life; the vital or essential part; concentrated force; vigor; strength; importance; as, the speech lacked pith.

Enterprises of great pith and moment. --Shak.

Pith paper. Same as Rice paper, under Rice.

Pith

Pith\, v. t. (Physiol.) To destroy the central nervous system of (an animal, as a frog), as by passing a stout wire or needle up and down the vertebral canal.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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Language Translation for : pith
Spanish: piel blanca,
German: die Fruchthaut,
Japanese: 中果皮
More Translations »

pith 
O.E. piþa "pith of plants," also "essential part," from W.Gmc. *pithan- (cf. M.Du. pitte, E.Fris. pit), a Low Ger. root of uncertain origin. Fig. sense was in O.E. The verb meaning "to kill by piercing the spinal cord" is from 1805. Pithy "full of substance or significance" is recorded from 1529. Pith helmet (1889, earlier pith hat, 1884) so called because it is made from the dried pith of the Bengal spongewood.
Online Etymology Dictionary, © 2001 Douglas Harper
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Main Entry: pith
Pronunciation: 'pith
Function: transitive verb
1 : to kill (as cattle) by piercing or severing the spinal cord
2 : to destroy the spinal cord or central nervous system of (as a frog) usually by passing a wire or needle up and down the vertebral canal
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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pith (pĭth)
n.

  1. The soft inner substance of a hair.
  2. Spinal cord or bone marrow. No longer in technical use.
v. pithed, pith·ing, piths
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.
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pith   (pĭth)  Pronunciation Key 
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  
  1. To remove the pith from a plant stem.
  2. 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 © 2002. Published by Houghton Mifflin. All rights reserved.
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