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Insecta :: Insecta (n. pl.) One of the classes of Arthropoda, including those that have one pair of antennae, three pairs of mouth organs, and breathe air by means of tracheae, opening by spiracles along the sides of the body. In this sense it includes the Hexapoda, or six-legged insects and the Myriapoda, with numerous legs. See Insect, n..

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

Tracheae :: Tracheae (pl. ) of Trache.

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

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

Larynx :: Larynx (n.) The expanded upper end of the windpipe or trachea, connected with the hyoid bone or cartilage. It contains the vocal cords, which produce the voice by their vibrations, when they are stretched and a current of air passes between them. The larynx is connected with the pharynx by an opening, the glottis, which, in mammals, is protected by a lidlike epiglottis..

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

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

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

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..

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

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

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

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

Glottis :: Glottis (n.) The opening from the pharynx into the larynx or into the trachea. See Larynx.

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..

Tracheate :: Tracheate (n.) Any arthropod having tracheae; one of the Tracheata.

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

Trachearia :: Trachearia (n.pl.) A division of Arachnida including those that breathe only by means of tracheae. It includes the mites, ticks, false scorpions, and harvestmen..

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

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