- hollow pith
- 髓腔
Medical Chinese dictionary (湘雅医学词典). 2013.
hollow pith
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Pith — is a light substance that is found in vascular plants. It consists of soft, spongy parenchyma cells, and is located in the center of the stem. It is encircled by a ring of xylem (woody tissue), and outside that, a ring of phloem (bark tissue). In … Wikipedia
pith — 1. The center of a hair. 2. The spinal cord and medulla oblongata. 3. To pierce the medulla of an animal with a sharp instrument introduced at the base of the skull. [A.S. pitha] * * * pith … Medical dictionary
hollow stalk — noun or hollow stem : any plant disease characterized by degeneration or decay of the pith of the stalk (as of tobacco caused by Erwinia aroideae or of cauliflower caused by boron deficiency) … Useful english dictionary
angiosperm — /an jee euh sperrm /, n. Bot. a plant having its seeds enclosed in an ovary; a flowering plant. Cf. gymnosperm. [ANGIO + SPERM] * * * ▪ plant Introduction any member of the more than 300,000 species of flowering plants (division Anthophyta) … Universalium
tree — treelike, adj. /tree/, n., v., treed, treeing. n. 1. a plant having a permanently woody main stem or trunk, ordinarily growing to a considerable height, and usually developing branches at some distance from the ground. 2. any of various shrubs,… … Universalium
Tree — /tree/, n. Sir Herbert Beerbohm /bear bohm/, (Herbert Beerbohm), 1853 1917, English actor and theater manager; brother of Max Beerbohm. * * * I Woody perennial plant. Most trees have a single self supporting trunk containing woody tissues, and in … Universalium
wood — wood1 woodless, adj. /wood/, n. 1. the hard, fibrous substance composing most of the stem and branches of a tree or shrub, and lying beneath the bark; the xylem. 2. the trunks or main stems of trees as suitable for architectural and other… … Universalium
Wood — /wood/, n. 1. Grant, 1892 1942, U.S. painter. 2. Leonard, 1860 1927, U.S. military doctor and political administrator. * * * I Hard, fibrous material formed by the accumulation of secondary xylem produced by the vascular cambium. It is the… … Universalium
Glossary of plant morphology terms — Biologists that study plant morphology use a number of different terms to describe plant organs and parts that can be observed with the human eye using no more than a hand held magnifying lens. These terms are used to identify and classify plants … Wikipedia
sago — /say goh/, n. a starchy foodstuff derived from the soft interior of the trunk of various palms and cycads, used in making puddings. [1545 55; earlier sagu < Malay] * * * Food starch prepared from carbohydrate material stored in the trunks of… … Universalium
Brown algae — Temporal range: 150–0 Ma[1][2] … Wikipedia
