英语词汇“tracheid”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

tracheid

/ˈtreɪkɪɪd

noun Botany

A type of water-conducting cell in the xylem which lacks perforations in the cell wall.Lignins occur in great quantity in the secondary cell walls of fibres, xylem vessels and tracheids....

Tissues external to the xylem were removed because of the presence of large resin ducts which could release materials that would obstruct water flow through the xylem tracheids.
Vessel elements, tracheids, fibres, sieve tube elements, sieve cells, and parenchyma cells are the major components of vascular tissue.

Origin

Late 19th century: from German Tracheide, from medieval Latin trachea (see trachea).

单词	tracheid
释义	tracheid /ˈtreɪkɪɪd / noun Botany A type of water-conducting cell in the xylem which lacks perforations in the cell wall.Lignins occur in great quantity in the secondary cell walls of fibres, xylem vessels and tracheids.... Tissues external to the xylem were removed because of the presence of large resin ducts which could release materials that would obstruct water flow through the xylem tracheids. Vessel elements, tracheids, fibres, sieve tube elements, sieve cells, and parenchyma cells are the major components of vascular tissue. Origin Late 19th century: from German Tracheide, from medieval Latin trachea (see trachea).
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