XYLEM

n. tissue in trees (Botany)

In vascular plants, xylem is one of the two types of transport tissue, phloem being the other one. The word "xylem" is derived from classical Greek  ξυλον (xylon), "wood", and indeed the best known xylem tissue is wood, though it is found throughout the plant. Its basic function is to transport water.
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Noun
1. the woody part of plants: the supporting and water-conducting tissue, consisting primarily of tracheids and vessels
(hypernym) vascular tissue
(part-holonym) woody plant, ligneous plant
(part-meronym) tracheid

(n.)
That portion of a fibrovascular bundle which has developed, or will develop, into wood cells; -- distinguished from phloem.
  

xylem /'zailem/
danh từ (thực vật học) chất gỗ, xylem
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