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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..

Trachenchyma :: Trachenchyma (n.) A vegetable tissue consisting of tracheae.

Artery :: Artery (n.) The trachea or windpipe.

Tracheophonae :: Tracheophonae (n. pl.) A group of passerine birds having the syrinx at the lower end of the trachea.

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..

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

Tracheary :: Tracheary (a.) Tracheal; breathing by means of tracheae.

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

Malacopoda :: Malacopoda (n. pl.) A class of air-breathing Arthropoda; -- called also Protracheata, and Onychophora..

Spiracle :: Spiracle (n.) One of the external openings communicating with the air tubes or tracheae of insects, myriapods, and arachnids. They are variable in number, and are usually situated on the sides of the thorax and abdomen, a pair to a segment. These openings are usually elliptical, and capable of being closed. See Illust. under Coleoptera..

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

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

Stigma :: Stigma (v. t.) One of the external openings of the tracheae of insects, myriapods, and other arthropods; a spiracle..

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.

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..

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

Phalangoidea :: Phalangoidea (n. pl.) A division of Arachnoidea, including the daddy longlegs or harvestman (Phalangium) and many similar kinds. They have long, slender, many-jointed legs; usually a rounded, segmented abdomen; and chelate jaws. They breathe by tracheae. Called also Phalangides, Phalangidea, Phalangiida, and Opilionea..

Bronchia :: Bronchia (n. pl.) The bronchial tubes which arise from the branching of the trachea, esp. the subdivision of the bronchi..

The Gapes :: The gapes () A disease of young poultry and other birds, attended with much gaping. It is caused by a parasitic nematode worm (Syngamus trachealis), in the windpipe, which obstructs the breathing. See Gapeworm..

Tracheoscopy :: Tracheoscopy (n.) Examination of the interior of the trachea by means of a mirror.

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