| ETC | electron transport chain; esophageal tracheal combitude; estimated time of conception |
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| LTA | leukotriene A; lipoate transacetylase; lipotechoic acid; local tracheal anesthesia; long-term archiv... |
| PTLA | pharyngeal tracheal lumen airway |
| TB | Taussig-Bind [syndrome]; terabyte; term birth; terminal bronchiole; terminal bronchus; thromboxane B... |
| TD | tabes dorsalis; tardive dyskinesia; T-cell dependent; temporary disability; terminal device; tetanus... |
| tracheal tug | A downward pull of the trachea, manifested by a downward movement of the thyroid cartilage, synchronous with the action of the heart and symptomatic of aneurysm of the aortic arch; the sign is elicited most easily by drawing the cricoid cartilage upward with the thumb and forefinger while the patient sits with head thrown back and mouth closed, a jerky type of inspiration seen when the intercostal muscles and the sternocostal parts of the diaphragm are paralysed by deep general anaesthesia or muscle relaxants; due to the unopposed action of the crura pulling on the dome of the diaphragm and thence on the pericardium, lung roots, and tracheobronchial tree during each inspiration. (05 Mar 2000) |
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| tracheal ulceration | Erosion of the tracheal mucous membrane with, in some cases, exposure of the rings, at the site at which a cuffed tracheostomy tube has been present for some time. (05 Mar 2000) |
| tracheal veins | Several small venous trunks from the trachea, emptying into the brachiocephalic veins or the superior vena cava. Synonym: venae tracheales. (05 Mar 2000) |
| tracheal wall stripe | On a chest radiograph, the linear opacity between air in the trachea and in the right upper lobe. (05 Mar 2000) |