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 ?
| Left, mini cops Craig Brown, 10, and Laura Gregory, seven, inspect the murder scene at an exhibition, Andy Reed with James Bond John Smith's, part of the 007 exhibition in 1999, Right, the anchor from the Finnish Barque Birger, shipwrecked a mile offRedcar more than 110 years ago, was brought ashore, pictured with Peter Guiver of Glaisdale in 1999
Among the stunning vessels was the Europa, a steel-hulled barque from the Netherlands, built in 1911, and now manned by trainees on its worldwide travels.
It belonged to the ship's captain, Richard Prichard, who died on board the barque, Barbara, while sailing to Rangoon, aged 38, i n 1881.
Nathan Whitford is a 16 year old aboard the barque Pioneer with his botanist father en route to the Amazon.
Sydney Heritage Fleet, the organisation which completed the restoration of the historic 1874 Barque James Craig, is nearing the completion of its latest heritage vessel--John Oxley.
If there is an actual tomb of Osiris in the text, it is the one associated with CT spell 1118-1124, where a figure made of earth seems to be kept--even though one might still quibble whether it is really a tomb, given that it is shown pictorially as a barque.
Tranquillity will not return until the Pope succeeds in anchoring the barque of Peter between the twin pillars of Eucharistic Adoration and devotion to Our Lady."
It is a room typical of its time and place, except that it's the captain's cabin aboard the sailing barque Belmont.
The four-masted barque Esmeralda, which left Chile in April for a six-month series of visits, is scheduled to call at Dartmouth, Devon, and London next month.
Of a spiritual barque that havens us on roiling seas?