- concentric vascular bundle
- 同心维管束,包围维管束
Medical Chinese dictionary (湘雅医学词典). 2013.
Medical Chinese dictionary (湘雅医学词典). 2013.
concentric bundle — noun : a plant vascular bundle in which (1) phloem surrounds xylem or (2) xylem surrounds phloem called also respectively (1) amphicribral bundle, (2) amphivasal bundle … Useful english dictionary
vascular system — ▪ plant physiology in plants, assemblage of conducting tissues and associated supportive fibres. xylem tissue transports water and dissolved minerals to the leaves, and phloem tissue conducts food from the leaves to all parts of the plant.… … 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
Flowering plant — Flowering plants Temporal range: Early Cretaceous Recent … Wikipedia
stria — 1. A stripe, band, streak, or line, distinguished by color, texture, depression, or elevation from the tissue in which it is found. SYN: striation (1). 2. SYN: striae cutis distensae. [L … Medical dictionary
Aortic insufficiency — See also: mitral regurgitation and tricuspid insufficiency Aortic insufficiency Classification and external resources Micrograph of myxomatous degeneration – a cause of aortic insufficiency … Wikipedia
diagnosis — /duy euhg noh sis/, n., pl. diagnoses / seez/. 1. Med. a. the process of determining by examination the nature and circumstances of a diseased condition. b. the decision reached from such an examination. Abbr.: Dx 2. Biol. scientific… … Universalium
Aortic valve stenosis — Classification and external resources ICD 10 I35.0, I06.0, Q23.0 … Wikipedia
cell — cell1 cell like, adj. /sel/, n. 1. a small room, as in a convent or prison. 2. any of various small compartments or bounded areas forming part of a whole. 3. a small group acting as a unit within a larger organization: a local cell of the… … Universalium
science, history of — Introduction the history of science from its beginnings in prehistoric times to the 20th century. On the simplest level, science is knowledge of the world of nature. There are many regularities in nature that mankind has had to… … Universalium
zone — A segment; any encircling or beltlike structure, either external or internal, longitudinal or transverse. SEE ALSO: area, band, region, space, spot. SYN: zona (1) [TA]. [L. zona] … Medical dictionary