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Eventration :: Eventration (n.) A tumor containing a large portion of the abdominal viscera, occasioned by relaxation of the walls of the abdomen..

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..

Parumbilical :: Parumbilical (a.) Near the umbilicus; -- applied especially to one or more small veins which, in man, connect the portal vein with the epigastric veins in the front wall of the abdomen..

Viscus :: Viscus (n.) One of the organs, as the brain, heart, or stomach, in the great cavities of the body of an animal; -- especially used in the plural, and applied to the organs contained in the abdomen..

Navel :: Navel (n.) A mark or depression in the middle of the abdomen; the umbilicus. See Umbilicus.

Cicada :: Cicada (n.) Any species of the genus Cicada. They are large hemipterous insects, with nearly transparent wings. The male makes a shrill sound by peculiar organs in the under side of the abdomen, consisting of a pair of stretched membranes, acted upon by powerful muscles. A noted American species (C. septendecim) is called the seventeen year locust. Another common species is the dogday cicada..

Laemodipoda :: Laemodipoda (n. pl.) A division of amphipod Crustacea, in which the abdomen is small or rudimentary and the legs are often reduced to five pairs. The whale louse, or Cyamus, and Caprella are examples..

Thalassinian :: Thalassinian (n.) Any species of Thalaassinidae, a family of burrowing macrurous Crustacea, having a long and soft abdomen..

Hypogastrium :: Hypogastrium (n.) The lower part of the abdomen.

Eventration :: Eventration (n.) A wound, of large extent, in the abdomen, through which the greater part of the intestines protrude..

Thorax :: Thorax (n.) The part of the trunk between the neck and the abdomen, containing that part of the body cavity the walls of which are supported by the dorsal vertebrae, the ribs, and the sternum, and which the heart and lungs are situated; the chest..

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..

Abdominal :: Abdominal (a.) Of or pertaining to the abdomen; ventral; as, the abdominal regions, muscles, cavity..

Prelumbar :: Prelumbar (a.) Situated immediately in front of the loins; -- applied to the dorsal part of the abdomen.

Gastroraphy :: Gastroraphy (n.) The operation of sewing up wounds of the abdomen.

Solifugae :: Solifugae (n. pl.) A division of arachnids having large, powerful fangs and a segmented abdomen; -- called also Solpugidea, and Solpugides..

Anomuran :: Anomuran (a.) Irregular in the character of the tail or abdomen; as, the anomural crustaceans..

Pink :: Pink (v. t.) The European minnow; -- so called from the color of its abdomen in summer.

Arthrostraca :: Arthrostraca (n. pl.) One of the larger divisions of Crustacea, so called because the thorax and abdomen are both segmented; Tetradecapoda. It includes the Amphipoda and Isopoda..

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..

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