Hypertext Webster Gateway: "trachea"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Trachea \Tra"che*a\, n.; 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) 1.7 (wn)
trachea
n 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
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