Tracheid
Tracheid Tra"che*id, n. (Bot.) A wood cell with spiral or other markings and closed throughout, as in pine wood. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • tracheid — [trā′kēid] n. [ TRACHE(O) + ID] Bot. a type of long, thick walled, tubelike, nonliving cell found in xylem, esp. of the conifers tracheidal adj …   English World dictionary

  • tracheid — noun Etymology: International Scientific Vocabulary Date: 1875 a long tubular pitted cell that is peculiar to xylem, functions in conduction and support, and has tapering closed ends and thickened lignified walls …   New Collegiate Dictionary

  • Tracheid — Tracheids are elongated cells in the xylem of vascular plants, serving in the transport of water and mineral salts. The build of tracheids will vary according to where they occur. Tracheids are one of two types of tracheary elements, vessel… …   Wikipedia

  • tracheid — Water conducting cell forming part of the plant xylem. Contains thick, lignified secondary cells walls, with no protoplast at maturity. Interconnects with neighbouring tracheids through pits; the end walls are not perforated (cf. vessel elements) …   Dictionary of molecular biology

  • tracheid — tracheidal /treuh kee i dl, tray kee uyd l/, adj. /tray kee id/, n. Bot. an elongated, tapering xylem cell having lignified, pitted, intact walls, adapted for conduction and support. Cf. vessel (def. 5). [1870 75; TRACHE(A) + ID3] * * * ▪ plant… …   Universalium

  • tracheid —   Xylem cell with thickened pitted or annular walls and tapered ends …   Expanded glossary of Cycad terms

  • tracheid — tra·cheid …   English syllables

  • tracheid — tra•che•id [[t]ˈtreɪ ki ɪd[/t]] n. bot an elongated, tapering xylem cell having woody, pitted, intact walls, adapted for conduction and support Compare vessel 4) • Etymology: 1870–75 …   From formal English to slang

  • tracheid — /ˈtreɪkiɪd/ (say traykeeid) noun an elongated, imperforate, dead xylem cell with a lignified wall. Also, tracheide …   Australian English dictionary

  • tracheid — An elongated, tapering xylem cell, with lignified pitted walls, adapted for solute conduction and physical support. Found in conifers, ferns and related plants …   Glossary of Biotechnology

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