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Trachea :: Trachea (n.) One of the respiratory tubes of insects and arachnids.

Air Vessel :: Air vessel () A vessel, cell, duct, or tube containing or conducting air; as the air vessels of insects, birds, plants, etc.; the air vessel of a pump, engine, etc. For the latter, see Air chamber. The air vessels of insects are called tracheae, of plants spiral vessels..

Windpipe :: Windpipe (n.) The passage for the breath from the larynx to the lungs; the trachea; the weasand. See Illust. under Lung.

Tracheae :: Tracheae (pl. ) of Trache.

Laryngotracheal :: Laryngotracheal (a.) Pertaining to both larynx and trachea; as, the laryngotracheal cartilage in the frog..

Tracheobronchial :: Tracheobronchial (a.) Pertaining both to the tracheal and bronchial tubes, or to their junction; -- said of the syrinx of certain birds..

Vessel :: Vessel (n.) A continuous tube formed from superposed large cylindrical or prismatic cells (tracheae), which have lost their intervening partitions, and are usually marked with dots, pits, rings, or spirals by internal deposition of secondary membranes; a duct..

Tracheitis :: Tracheitis (n.) Inflammation of the trachea, or windpipe..

Tracheobranchia :: Tracheobranchia (n.) One of the gill-like breathing organs of certain aquatic insect larvae. They contain tracheal tubes somewhat similar to those of other insects.

Expectorate :: Expectorate (v. t.) To eject from the trachea or lungs; to discharge, as phlegm or other matter, by coughing, hawking, and spitting; to spit forth..

Laryngotracheotomy :: Laryngotracheotomy (n.) The operation of cutting into the larynx and the upper part of the trachea, -- a frequent operation for obstruction to breathing..

Tracheocele :: Tracheocele (n.) A tumor containing air and communicating with the trachea.

Pauropoda :: Pauropoda (n. pl.) An order of small myriapods having only nine pairs of legs and destitute of tracheae.

Tracheate :: Tracheate (a.) Breathing by means of tracheae; of or pertaining to the Tracheata.

Trachea :: Trachea (n.) 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..

Tracheal :: Tracheal (a.) Of or pertaining to the trachea; like a trachea.

Trachea :: Trachea (n.) The windpipe. See Illust. of Lung.

Peritracheal :: Peritracheal (a.) Surrounding the tracheae.

Croup :: Croup (n.) An inflammatory affection of the larynx or trachea, accompanied by a hoarse, ringing cough and stridulous, difficult breathing; esp., such an affection when associated with the development of a false membrane in the air passages (also called membranous croup). See False croup, under False, and Diphtheria..

Protracheata :: Protracheata (n. pl.) Same as Malacopoda.

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