xylem parenchyma

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• xylem parenchyma — noun : wood parenchyma …   Useful english dictionary

• xylem — [zī′ləm, zī′lem] n. [Ger < Gr xylon, wood] the woody vascular tissue of a plant, characterized by the presence of vessels or tracheids or both, fibers, and parenchyma, that conducts water and mineral salts in the stems, roots, and leaves and… …   English World dictionary

• xylem — /zuy leuhm, lem/, n. Bot. a compound tissue in vascular plants that helps provide support and that conducts water and nutrients upward from the roots, consisting of tracheids, vessels, parenchyma cells, and woody fibers. [1870 75; < G, equiv. to… …   Universalium

• Xylem — Multiple cross sections of a flowering plant stem showing primary and secondary xylem and phloem[1] Xylem is one of the two types of transport tissue in vascular plants. (Phloem is the other). The word xylem is derived from the Classical Greek… …   Wikipedia

• parenchyma — parenchymal, parenchymatous /par euhng kim euh teuhs/, adj. /peuh reng keuh meuh/, n. 1. Bot. the fundamental tissue of plants, composed of thin walled cells able to divide. 2. Anat., Zool. the specific tissue of an animal organ as distinguished… …   Universalium

• xylem — noun Etymology: German, from Greek xylon Date: 1873 a complex tissue in the vascular system of higher plants that consists of vessels, tracheids, or both usually together with wood fibers and parenchyma cells, functions chiefly in conduction of… …   New Collegiate Dictionary

• xylem — Plant tissue responsible for the movement of water and inorganic solutes from the roots to the shoot and leaves. Contains tracheids, vessels, fibre cells and parenchyma. Also provides structural support for the plant, especially in wood …   Dictionary of molecular biology

• xylem — xy•lem [[t]ˈzaɪ ləm, lɛm[/t]] n. bot a compound tissue in vascular plants that helps provide support and that conducts water and nutrients upward from the roots, consisting of tracheids, vessels, parenchyma cells, and woody fibers • Etymology:… …   From formal English to slang

• wood parenchyma — noun : the vertical and usually axially arranged parenchyma of the xylem that is believed to function chiefly in carbohydrate storage compare phloem parenchyma, ray parenchyma …   Useful english dictionary

• wood parenchyma — noun the vertical and usually axially arranged parenchyma of the xylem that is believed to function chiefly in carbohydrate storage …   Wiktionary

• gymnosperm — gymnospermism, n. /jim neuh sperrm /, n. Bot. a vascular plant having seeds that are not enclosed in an ovary; a conifer or cycad. Cf. angiosperm. [1820 30; < NL gymnospermae name of type. See GYMNO , SPERM] * * * Any woody plant that reproduces… …   Universalium