xylem ray

См. также в других словарях:

• xylem ray — n. a transverse sheet of soft, living cells wholly within the wood or xylem and extending from the pith of a stem to the phloem …   English World dictionary

• xylem ray — noun or xylary ray : a vascular ray or portion of a vascular ray that is located in xylem called also wood ray; compare phloem ray * * * a vascular ray extending into or located entirely within the secondary xylem. Also called wood ray. [1870 75] …   Useful english dictionary

• xylem ray — noun Date: 1875 a vascular ray or portion of a vascular ray located in xylem called also wood ray compare phloem ray …   New Collegiate Dictionary

• xylem ray — xy′lem ray n. bot a vascular ray extending into or located entirely within the xylem Also called wood ray • Etymology: 1870–75 …   From formal English to slang

• xylem ray — a vascular ray extending into or located entirely within the secondary xylem. Also called wood ray. [1870 75] * * * …   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

• vascular ray — noun a sheet of vascular tissue separating the vascular bundles • Syn: ↑medullary ray • Hypernyms: ↑vascular tissue * * * noun : a ray of cambial origin that occurs in the stele of many vascular plants and often separates the vascular bundles see …   Useful english dictionary

• phloem ray — noun : a vascular ray or part of a vascular ray that is located in phloem called also bast ray; compare xylem ray * * * Bot. a vascular ray extending into or located entirely within the secondary phloem. [1870 75] * * * phloem ray, a ray or plate …   Useful english dictionary

• phloem ray — noun Date: 1875 a vascular ray or part of a vascular ray that is located in phloem compare xylem ray …   New Collegiate Dictionary

• wood ray — noun : xylem ray * * * wood ray, Botany. medullary ray …   Useful english dictionary

• wood ray — n. XYLEM RAY * * * …   Universalium