tracheid

[ trey-kee-id ]

nounBotany.
  1. an elongated, tapering xylem cell having lignified, pitted, intact walls, adapted for conduction and support.: Compare vessel (def. 5).

Origin of tracheid

1
First recorded in 1870–75; trache(a) + -id3

Other words from tracheid

  • tra·che·i·dal [truh-kee-i-dl, trey-kee-ahyd-l], /trəˈki ɪ dl, ˌtreɪ kiˈaɪd l/, adjective

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British Dictionary definitions for tracheid

tracheid

tracheide

/ (ˈtreɪkɪɪd) /


noun
  1. botany an element of xylem tissue consisting of an elongated lignified cell with tapering ends and large pits

Origin of tracheid

1
C19: from trachea (in the sense: a vessel in a plant) + -id ²

Derived forms of tracheid

  • tracheidal (trəˈkiːɪdəl, ˌtreɪkɪˈaɪdəl), adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for tracheid

tracheid

[ trākē-ĭd, -kēd′ ]


  1. An elongated, water-conducting cell in xylem, one of the two kinds of tracheary elements. Tracheids have pits where the cell wall is modified into a thin membrane, across which water flows from tracheid to tracheid. The cells die when mature, leaving only their lignified cell walls. Tracheids are found in all vascular plants. Compare vessel element.

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