bark

(redirected from Tree bark)
Also found in: Dictionary, Thesaurus, Encyclopedia.

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

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.
References in periodicals archive ?
The name kobog derives from the word bobog (to smash) and refers to the tree bark after it has been processed, as shown in Figure 2.
The purpose of this study was to compare the effect of some compost growing media or organic wastes (composted tree bark, composted tea wastes and rice husks) on some plant characteristics including plant height, stem diameter, the number of lateral shoots, fresh and dry weight of shoots and fresh and dry weight of roots of F.
At the end, we reviewed all the target concepts of the lesson: collage, tree bark and texture.
So if we have to see our GP when we are ill has he been told to tell us to eat tree bark? J Young, Curtis Road, Coventry.
2 a - Rice paper is made from tree bark. 3 c - The stems of sunflowers were once used to stuff lifejackets.
Thick brown card mimics the texture of tree bark, making this the ideal scratching post for your pampered pet.
Providing four earth tones--shady brown, forest green, tree bark grey and pitch black--the easy-to-use face camo is ideal for all hunting seasons from early spring to late winter.
The technique can utilise a wide range of inorganic and organic wastes that can otherwise be difficult to dispose of, including steel slag, blast furnace slag, coal fly and bottom ash, red mud from bauxite processing, tree bark, sugar mill mud, spent brewery yeast and prawn processing waste.
Test on an inconspicuous area first and you'll find what was once as rough as tree bark is sleek and smooth once more.
Louis, Missouri USA, has introduced a flexible polyurea resin material specifically designed for manufacturing artificial tree bark. The company says that Chemthane 7070 gives fabricators, contractors, and building owners a means of decorating open areas with highly realistic artificial trees.
Following a very brief introduction to the history of the modern medicinal use of willow tree bark, international contributors to six chapters treat aspirin's more recently recognized roles and challenges in its prescription.
CHARLOTTESTOWN, PEI -- Negotiations are underway to create a power plant that would convert dead branches and tree bark into energy.