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n. pl. tra·che·ae (-kē-ē′) 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, which are connected to the spiracles and are used for gas exchange.
3. Botany A tracheary element.

[Middle English trache, from Medieval Latin trāchēa, from Late Latin trāchīa, from Greek (artēriā) trākheia, rough (artery), trachea (as opposed to the smooth vessels that carry blood and not air), feminine of trākhus, rough.]

tra′che·al adj.


(ˈtreɪ ki əl)

1. pertaining to or connected with the trachea or tracheae.
2. of the nature of or composed of tracheae or vessels in plants.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.tracheal - relating to or resembling or functioning like a tracheatracheal - relating to or resembling or functioning like a trachea


[trəˈkɪəl] adjtracheale


a. traqueal, rel. a la tráquea;
___ stenosisestenosis ___.
References in periodicals archive ?
Transendoscopic tracheal aspiration and cytology were performed on the 16 horses that demonstrated tracheobronchial secretions with the purpose of evaluating cytological profiles, which revealed the following average percentages for cell counts: macrophages, 60.
These were isolated from different sources including urine, sputum, tracheal aspiration, pus, and blood.
Among the multitude of potential advantages in its use the most important are: the avoidance of complications related to laryngoscopy and endotracheal intubation drastic reduction of descending infections related to intubation in children who have had a recent upper respiratory tract infection; reduced tracheal aspiration and a less irritable recovery from anaesthesia.
After 30 minutes, ventilation was returned to the original settings, participants were repositioned in the supine 30-degree head-up position and underwent tracheal aspiration and another 3 sighs with a two-fold increase in tidal volume.
Barium swallow examination revealed tracheal aspiration, and gastroesophageal reflux was later confirmed with a milk scan.
Repeated tracheal aspiration was highly productive and showed hemoptysis and sustained intraalveolar plasma leakage.