[ trey-kee-id ]
/ ˈtreɪ ki ɪd /
an elongated, tapering xylem cell having lignified, pitted, intact walls, adapted for conduction and support.Compare vessel (def. 5).
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OTHER WORDS FROM tracheidtra·che·i·dal [truh-kee-i-dl, trey-kee-ahyd-l], /trəˈki ɪ dl, ˌtreɪ kiˈaɪd l/, adjective
Words nearby tracheid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for tracheid
As a rule buckling of a tracheid begins at the bordered pits which form places of least resistance in the walls.The Mechanical Properties of Wood|Samuel J. Record
British Dictionary definitions for tracheid
/ (ˈtreɪkɪɪd) /
botany an element of xylem tissue consisting of an elongated lignified cell with tapering ends and large pits
Derived forms of tracheidtracheidal (trəˈkiːɪdəl, ˌtreɪkɪˈaɪdəl), adjective
Word Origin for tracheid
C19: from trachea (in the sense: a vessel in a plant) + -id ²
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
[ trā′kē-ĭd, -kēd′ ]
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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.