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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 ?
Air-blood barrier-translocation of tracheally instilled gold nanoparticles inversely depends on particle size.
Out of 17 patients, 13 patients were intubated tracheally while four patients required tracheostomy (Figure 2).
Data from all patients tracheally intubated within RPH main theatres (15 theatres) within a one month period (15 April to 14 May) in 2010 and 2011 were obtained respectively and compared.
Descriptive Statistics and Correlations Between Predictor Variables and Tracheal Secretion Glucose In Rabbits with Tracheally Instilled Enteral Formula/Gastric Juice (N = 161) Correlations with Tracheal Secretion Glucose (TSG) Predictor Variables: Mean + S.
Approximately 12 hours after admission to the ICU, the patient had apneic episodes and anisocoria and was tracheally intubated.