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Thorax :: Thorax (n.) The middle region of the body of an insect, or that region which bears the legs and wings. It is composed of three united somites, each of which is composed of several distinct parts. See Illust. in Appendix. and Illust. of Coleoptera..

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..

Bell Bearer :: Bell bearer () A Brazilian leaf hopper (Bocydium tintinnabuliferum), remarkable for the four bell-shaped appendages of its 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..

Mesosternum :: Mesosternum (n.) The ventral piece of the middle segment of the thorax in insects.

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

Succussive :: Succussion (n.) The act of shaking; a shake; esp. (Med.), a shaking of the body to ascertain if there be a liquid in the thorax..

Prophragma :: Prophragma (n.) An internal dorsal chitinous process between the first two divisions of the thorax of insects.

Hydrothorax :: Hydrothorax (n.) An accumulation of serous fluid in the cavity of the chest.

Apodeme :: Apodeme (n.) One of the processes of the shell which project inwards and unite with one another, in the thorax of many Crustacea..

Rib :: Rib (n.) One of the curved bones attached to the vertebral column and supporting the lateral walls of the thorax.

Pneumatograph :: Pneumatograph (n.) An instrument for recording the movements of the thorax or chest wall during respiration; -- also called stethograph.

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

Waist :: Waist (n.) That part of the human body which is immediately below the ribs or thorax; the small part of the body between the thorax and hips.

Prosoma :: Prosoma (n.) The anterior of the body of an animal, as of a cephalopod; the thorax of an arthropod..

Metathoracic :: Metathoracic (a.) Of or pertaining to the metathorax.

Metathorax :: Metathorax (n.) The last or posterior segment of the thorax in insects. See Illust. of Coleoptera.

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

Endothorax :: Endothorax (n.) An internal process of the sternal plates in the thorax of insects.

Endophragma :: Endophragma (n.) A chitinous structure above the nervous cord in the thorax of certain Crustacea.

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