xylem

Definitions:

  • The tissue of vascular plants that conducts water and minerals, provides support, and consists of tracheary elements and parenchyma cells. Woody tissue is made of secondary xylem produced by the vascular cambium.
  • In <em>botany</em>, that part of a fibrovascular bundle which contains ducts or tracheids—that is, the woody part, as distinguished from the phloëm, or bast part. Compare <internalXref urlencoded="phlo%C3%ABm">phloëm</internalXref>. See <em>protoxylem, leptoxylem.</em>
  • That portion of a fibrovascular bundle which has developed, or will develop, into wood cells; -- distinguished from <ex>phloëm</ex>.
  • A <xref>vascular</xref> <xref>tissue</xref> in land plants primarily responsible for the distribution of water and minerals taken up by the roots; also the primary component of <xref>wood</xref>.
  • the woody part of plants: the supporting and water-conducting tissue, consisting primarily of tracheids and vessels
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