vascular bud

an outgrowth of an existing vessel from which a new blood vessel arises.

Medical dictionary. 2011.

Look at other dictionaries:

  • Bud — /bud/, n. a male given name. Also, Budd. * * * I Small lateral or terminal protuberance on the stem of a vascular plant that may develop into a flower, leaf, or shoot. Buds arise from meristem tissue. In temperate climates, trees form resting… …   Universalium

  • bud — bud1 budder, n. budless, adj. budlike, adj. /bud/, n., v., budded, budding. n. 1. Bot. a. a small axillary or terminal protuberance on a plant, containing rudimentary foliage (leaf bud), the rudimentary inflorescence …   Universalium

  • bud — 1. An outgrowth that resembles the b. of a plant, usually pluripotential, and capable of differentiating and growing into a definitive structure. 2. To give rise to such an outgrowth. SEE ALSO: gemmation. 3. A small outgrowth from a parent cell;… …   Medical dictionary

  • Bud — In botany, a bud is an undeveloped or embryonic shoot and normally occurs in the axil of a leaf or at the tip of the stem. Once formed, a bud may remain for some time in a dormant condition, or it may form a shoot immediately.The buds of many… …   Wikipedia

  • periosteal bud — vascular connective tissue from the periosteum growing through apertures in the periosteal bone collar into the cartilaginous matrix of the primary center of ossification …   Medical dictionary

  • adventitious bud — noun botany : a bud arising in other than the normal position (as where elongation has ceased) and lacking a vascular trace compare trace bud …   Useful english dictionary

  • trace bud — noun : a plant bud having a vascular trace and developing in the elongating portion of a stem compare adventitious bud …   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

  • 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

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