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 periodicals archive ?
Used soilless growing media were peat, perlite, composted tree bark, composted tea wastes,and rice husks.
It is crucial to show the children how to place their hands under the 2-D curved tree bark as a support when they adhere their body parts to the bark.
Overall, there is a lack of agreement about which trap designs are most suitable and appropriate for collecting arthropods associated with tree bark.
In Untitled (Lighted Owl), he combines an image of an owl, a plastic spider, tree bark, and dried leaves.
In Shapero's drawing Skinned Alive, 2004, one piece of paper, rendered with intricate markings that resemble fur, or perhaps tree bark, lies crumpled over another smooth sheet, like an integument that's been flensed.
In a new double-blind clinical study published in Life Sciences journal, scientists say they have found that high blood pressure patients can cut their prescriptions nearly in half by using French maritime pine tree bark extract.
In 1235, some Londoners are reduced to eating tree bark to survive; 20,000 of them die of starvation.
She produces natural pesticides out of crushed leaves and tree bark mixed with red chili pepper.
The creativity evolves from the artist's love of the natural world: leaves, fish, tree bark, the moon, butterflies and many other features we find outdoors.
They will also learn fun almost facts about butterflies, turtles, tree bark and grandma's skin, how to build a forest house, and most importantly, how to spot fairies.
If we look at the forest instead of the tree bark, does it really make sense to continue with two separate switching infrastructures?