bark


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bark

(bark),
1. The envelope or covering of the roots, trunk, and branches of plants. Barks of pharmacologic significance not listed below are alphabetized under specific names.
2. Synonym(s): cinchona

bark

(bahrk) the rind or outer cortical cover of the woody parts of a plant, tree, or shrub.
cramp bark  the dried bark of Viburnum opulus, the high bush or cranberry tree; it has been used as an antispasmodic, uterine sedative, and antiscorbutic.
elm bark , slippery elm bark the dried inner bark of the slippery elm, Ulmus rubra, which is mucilaginous and demulcent.
white willow bark  a preparation of the bark of various Salix species collectively known as white willow, containing salicin, a precursor of salicylic acid; used as an antiinflammatory and antipyretic.
yohimbe bark  a preparation of the bark of Pausinystalia yohimbe, used for the same indications as yohimbine hydrochloride; it has also been used traditionally as an aphrodisiac and for skin diseases and obesity.

bark

Botany
The outer covering of trees and some plants, which consists of a cuticle (epidermis), outer bark (cortex) and inner bark (fibre).
 
Herbal medicine
(1) China, see there.
(2) Cinchona, see there; Cinchona species.
 
Veterinary medicine
The harsh sound uttered by a dog.

bark

the outer, living part of a woody stem, consisting of three layers:
  1. an inner layer called secondary PHLOEM, containing the elements of primary phloem plus horizontal ray cells which function in transporting materials across the stem.
  2. a middle layer of cork CAMBIUM, a group of meristematic (dividing) cells originating in the PARENCHYMA cells of the outer stem cortex. As the cells divide, the outer ones develop into cork cells and the inner ones give rise to parenchyma-like tissue.
  3. CORK, an outer region of cells forming a waterproof and protective layer broken only by LENTICELS.

bark

1. the voice of the dog.
2. the outer covering of a tree.

bark eating
a form of pica often indicative of boredom, nutritional deficiency of fiber or behavioral problem.
bark suppression
References in classic literature ?
It would not be easy to determine whether our arrival gave us greater joy, or the inhabitants greater apprehensions, for we could discern a continual tumult in the land, and took notice that the crews of some barks that lay in the harbour were unlading with all possible diligence, to prevent the cargo from falling into our hands, very much indeed to the dissatisfaction of many of our soldiers, who having engaged in this expedition, with no other view than of filling their pockets, were, before the return of our Abyssin, for treating them like enemies, and taking them as a lawful prize.
said Don Quixote, "cross ourselves and weigh anchor; I mean, embark and cut the moorings by which the bark is held;" and the bark began to drift away slowly from the bank.
In a few moments, notwithstanding their wet clothes, the icy blast that blew and the previous scene of terror, these hardy adventurers, with their iron frames, inured to every hardship, threw themselves down, intending to profit by the advice of Athos, who sat at the helm, pensively wakeful, guiding the little bark the way it was to go, his eyes fixed on the heavens, as if he sought to verify not only the road to France, but the benign aspect of protecting Providence.
A small twig is then stripped of its bark, and one end is dipped in the "medicine," as the trappers term the peculiar bait which they employ.
His dressings were soon applied, and consisted only of some pounded bark, moistened with a fluid that he had expressed from some of the simples of the woods.
General, I have a thousand excuses to make to you; my manner of acting has not been worthy of such a man as you, I know very well; but I wished you to take me for the captain of a bark.
A padding is placed on the forehead of the infant, with a piece of bark above it, and is pressed down by cords, which pass through holes on each side of the trough.
Once he sprang up with a clear, ringing bark, and I heard him wag his tail till it waked him and the bark died out in a howl.
Yes,' said the lord of the castle, 'if you will pass the night down there in the old tower, go thither; but I warn you, it is at the peril of your life, for it is full of wild dogs, which bark and howl without stopping, and at certain hours a man has to be given to them, whom they at once devour.
Suddenly the man hastened from the shelter only to return a few minutes later with several pieces of bark and--wonder of wonders--a lead pencil.
It was an enormous tree, its girth twice as great as a man could embrace, and evidently long ago some of its branches had been broken off and its bark scarred.
Darling would cry, and Nana's bark was the echo of it, but Mrs.