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Trunk :: Trunk (n.) That segment of the body of an insect which is between the head and abdomen, and bears the wings and legs; the thorax; the truncus..

Mesothorax :: Mesothorax (n.) The middle segment of the thorax in insects. See Illust. of Coleoptera.

Scutellum :: Scutellum (n.) The third of the four pieces forming the upper part of a thoracic segment of an insect. It follows the scutum, and is followed by the small postscutellum; a scutella. See Thorax..

Abdominothoracic :: Abdominothoracic (a.) Relating to the abdomen and the thorax, or chest..

Mediastinum :: Mediastinum (n.) A partition; a septum; specifically, the folds of the pleura (and the space included between them) which divide the thorax into a right and left cavity. The space included between these folds of the pleura, called the mediastinal space, contains the heart and gives passage to the esophagus and great blood vessels..

Disjunct :: Disjunct (a.) Having the head, thorax, and abdomen separated by a deep constriction..

Manitrunk :: Manitrunk (n.) The anterior segment of the thorax in insects. See Insect.

Scutum :: Scutum (n.) The second and largest of the four parts forming the upper surface of a thoracic segment of an insect. It is preceded by the prescutum and followed by the scutellum. See the Illust. under Thorax.

Elater :: Elater (n.) Any beetle of the family Elateridae, having the habit, when laid on the back, of giving a sudden upward spring, by a quick movement of the articulation between the abdomen and thorax; -- called also click beetle, spring beetle, and snapping beetle..

Mesonotum :: Mesonotum (n.) The dorsal portion of the mesothorax of insects.

Interthoracic :: Interthoracic (a.) In the thorax.

Propodium :: Propodium (n.) The segment which forms the posterior part of the thorax of a hymenopterous insect.

Pneumothorax :: Pneumothorax (n.) A condition in which air or other gas is present in the cavity of the chest; -- called also pneumatothorax.

Mesothoracic :: Mesothoracic (a.) Of or pertaining to the mesothorax.

Thorax :: Thorax (n.) The second, or middle, region of the body of a crustacean, arachnid, or other articulate animal. In the case of decapod Crustacea, some writers include under the term thorax only the three segments bearing the maxillipeds; others include also the five segments bearing the legs. See Illust. in Appendix..

Baenomere :: Baenomere (n.) One of the somites (arthromeres) that make up the thorax of Arthropods.

Episternum :: Episternum (n.) One of the lateral pieces next to the sternum in the thorax of insects.

Post-abdomen :: Post-abdomen (n.) That part of a crustacean behind the cephalothorax; -- more commonly called abdomen.

Abdomen :: Abdomen (n.) The belly, or that part of the body between the thorax and the pelvis. Also, the cavity of the belly, which is lined by the peritoneum, and contains the stomach, bowels, and other viscera. In man, often restricted to the part between the diaphragm and the commencement of the pelvis, the remainder being called the pelvic cavity..

Cucullated :: Cucullated (a.) Having the prothorax elevated so as to form a sort of hood, receiving the head, as in certain insects..

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