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
Farlex Partner Medical Dictionary © Farlex 2012

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.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

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.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Our dogs bark out of fear, as a warning, for protection and when they play.
He also barks, but not as much, when I walk him in a park where other dogs are being walked.
And if your dog, like mine, barks in several different situations, has multiple triggers, and the reward varies, you may need more than one solution to help your dog live a quieter life.
Ideally, the exact stimulus for the bark can be determined and an individually tailored plan can be produced which is most likely to be successful to your situation.
A LOT of dogs like to bark and most of the time they're trying to tell us something!
Thermal degradation characteristics of phenol-formaldehyde resins derived from beetle infested pine barks. Thermochim.
But often a bark's beauty can be in its colour, texture or shape - and even the smallest garden can contain a shrub which will shine in winter by virtue of its bark features.
The interaction, even today, causes conflict within the dog--it does not know whether to stand its ground or run away from the intruder, so it barks.
Online , allegations that Crowe, 48, and Barks, 22, (who played Eponine in the film) were a romantic item sprang up after the two were spotted looking cozy together at an Oscars party, where "Les MisA[c]rables" picked up three awards.
"Barks are so strong and effective I think they could even cure cancer," she said.
Assuming your dog barks on and off the lead, it would be advisable to start on the lead.
The dog, although well cared for and not tied up, would bark for long periods at night, either preventing us from getting off to sleep, or waking us in the night or very early in the morning.