- primary xylem
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Bot.xylem derived directly from the growth of an apical meristem.
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Universalium. 2010.
primary xylem
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primary xylem — noun : the first formed xylem; specifically : xylem developed from an apical meristem * * * Bot. xylem derived directly from the growth of an apical meristem … Useful english dictionary
primary — primary, primal, primordial, primitive, pristine, primeval, prime mean first in some respect (as order, character, or importance). Something primary comes first in the order of development or of progression. Sometimes the term means little more… … New Dictionary of Synonyms
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
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 — noun /ˈzaɪ.ləm/ A vascular tissue in land plants primarily responsible for the distribution of water and minerals taken up by the roots; also the primary component of wood … Wiktionary
primaryxylem — primary xylem n. A type of xylem tissue derived from the procambium. * * * … Universalium
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
plant — plantable, adj. plantless, adj. plantlike, adj. /plant, plahnt/, n. 1. any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that… … Universalium
plant development — Introduction a multiphasic process in which two distinct forms succeed each other in alternating generations. One form, created by the union of sexual cells (gametes (gamete)), contains two sets of similar chromosomes (diploid). At sexual… … 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
