tra·che·a (tr  k - )n. pl. tra·che·ae (-k - ) or tra·che·as 1. Anatomy A thin-walled, cartilaginous tube descending from the larynx to the bronchi and carrying air to the lungs. Also called windpipe. 2. Zoology One of the internal respiratory tubes of insects and some other terrestrial arthropods. 3. Botany One of the tubular conductive vessels in the xylem of vascular plants. [Middle English trache, from Medieval Latin tr cha, from Late Latin trch a, from Greek (artria) trkheia, rough (artery), trachea (as opposed to the smooth vessels that carried blood and not air), feminine of trkhus, rough.]tra che·al adj. |
trachea [track-kee-a, -kee-ee]
Noun
pl -cheae Anat, zool the tube that carries inhaled air from the throat to the lungs [Greek]
| trachea (trk-) Plural tracheae (tr k-) or tracheas 1. The tube in vertebrate animals that leads from the larynx to the bronchial tubes and carries air to the lungs. In mammals the trachea is strengthened by rings of cartilage. Also called windpipe. 2. Any of the tiny tubes originating from the spiracles of many terrestrial arthropods and forming a branching network that brings air directly to body cells. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  trachea - membranous tube with cartilaginous rings that conveys inhaled air from the larynx to the bronchiepiglottis - a flap of cartilage that covers the windpipe while swallowing upper respiratory tract - the nose and throat and trachea cartilaginous tube - a duct with cartilaginous walls |
| 2. |  trachea - one of the tubules forming the respiratory system of most insects and many arachnidstubule - a small tube respiratory system, systema respiratorium - the system for taking in oxygen and giving off carbon dioxide; in terrestrial animals this is accomplished by breathing |
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