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 ?
Then she went off to the stables and barked as though some one were stealing the horses, which was an old trick of hers.
The hair rose about his neck, and he growled as though a stranger were at the door; then he barked joyously, and rolled on the ground, and bit at Kotuko's boot like a puppy.
The Simpson incident had shown me that a dog was kept in the stables, and yet, though some one had been in and had fetched out a horse, he had not barked enough to arouse the two lads in the loft.
The Witch gave Dorothy a friendly little nod, whirled around on her left heel three times, and straightway disappeared, much to the surprise of little Toto, who barked after her loudly enough when she had gone, because he had been afraid even to growl while she stood by.
The ass brayed, the dog barked, the cat mewed, and the cock screamed; and then they all broke through the window at once, and came tumbling into the room, amongst the broken glass, with a most hideous clatter
Look at those cramped dead firs, ever the same, and at me too, sticking out my broken and barked fingers just where they have grown, whether from my back or my sides: as they have grown so I stand, and I do not believe in your hopes and your lies.
Michael, however, yielding to the contagion, sat beside his mother and barked angrily out across the increasing stretch of water as he would have barked at any danger that crept and rustled in the jungle.
The audience took up the cry, the dogs barked more excitedly, and five minutes of hilarity delayed the turn which, when at last started, was marked by rustiness and erraticness on the part of the dogs and by great peevishness on the part of Wilton Davis.
White Fang watched the performance with increasing anxiety until he could contain himself no longer, when he sprang in front of the horse and barked savagely and warningly.