Xylem

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Xylem \Xy"lem\, n. [Gr. xy`lon wood.] (Bot.)
     That portion of a fibrovascular bundle which has developed,
     or will develop, into wood cells; -- distinguished from
     {phloem}.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  xylem
       n : the woody part of plants: the supporting and
           water-conducting tissue, consisting primarily of
           tracheids and vessels