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From The Collaborative International Dictionary of English v.0.44 [gcide]:
Trachea \Tra"che*a\, noun; pl. {Trache[ae]}. [NL.,from L. trachia, Gr. trachei^a (sc. ? windpipe), from ? rough, rugged: cf. F. trach['e]e.]
1. (Anat.) The windpipe. See Illust. of {Lung}.
2. (Zo["o]l.) One of the respiratory tubes of insects and arachnids.
3. (Bot.) One of the large cells in woody tissue which have spiral, annular, or other markings, and are connected longitudinally so as to form continuous ducts.
From WordNet (r) 2.0 [wn]:
trachea
noun
1: membranous tube with cartilaginous rings that conveys inhaled air from the larynx to the bronchi [syn: {windpipe}]
2: one of the tubules forming the respiratory system of most insects and many arachnids [also: {tracheae} (pl)]
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Definitions retrieved from local copies of the freely distributed DICT client/server software and databases. Click here for database copyright information. - KM |