Search Result for "trachea": 
Wordnet 3.0

NOUN (2)

1. membranous tube with cartilaginous rings that conveys inhaled air from the larynx to the bronchi;
[syn: trachea, windpipe]

2. one of the tubules forming the respiratory system of most insects and many arachnids;


The Collaborative International Dictionary of English v.0.48:

Trachea \Tra"che*a\, n.; pl. Tracheae. [NL.,from L. trachia, Gr. trachei^a (sc. ? windpipe), from ? rough, rugged: cf. F. trach['e]e.] [1913 Webster] 1. (Anat.) The windpipe. See Illust. of Lung. [1913 Webster] 2. (Zool.) One of the respiratory tubes of insects and arachnids. [1913 Webster] 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. [1913 Webster]
WordNet (r) 3.0 (2006):

trachea n 1: membranous tube with cartilaginous rings that conveys inhaled air from the larynx to the bronchi [syn: trachea, windpipe] 2: one of the tubules forming the respiratory system of most insects and many arachnids