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Celiac :: Celiac (a.) Relating to the abdomen, or to the cavity of the abdomen..

Stalk :: Stalk (n.) The narrow basal portion of the abdomen of a hymenopterous insect.

Brachyura :: Brachyura (n. pl.) A group of decapod Crustacea, including the common crabs, characterized by a small and short abdomen, which is bent up beneath the large cephalo-thorax. [Also spelt Brachyoura.] See Crab, and Illustration in Appendix..

Macrura :: Macrura (n. pl.) A subdivision of decapod Crustacea, having the abdomen largely developed. It includes the lobster, prawn, shrimp, and many similar forms. Cf. Decapoda..

Laparotomy :: Laparotomy (n.) A cutting through the walls of the abdomen, as in the Caesarean section..

Collophore :: Collophore (n.) A suckerlike organ at the base of the abdomen of insects belonging to the Collembola.

Spinnerule :: Spinneret (n.) One of the special jointed organs situated on the under side, and near the end, of the abdomen of spiders, by means of which they spin their webs. Most spiders have three pairs of spinnerets, but some have only two pairs. The ordinary silk line of the spider is composed of numerous smaller lines jointed after issuing from the spinnerets..

Siphonet :: Siphonet (n.) One of the two dorsal tubular organs on the hinder part of the abdomen of aphids. They give exit to the honeydew. See Illust. under Aphis.

Rickets :: Rickets (n. pl.) A disease which affects children, and which is characterized by a bulky head, crooked spine and limbs, depressed ribs, enlarged and spongy articular epiphyses, tumid abdomen, and short stature, together with clear and often premature mental faculties. The essential cause of the disease appears to be the nondeposition of earthy salts in the osteoid tissues. Children afflicted with this malady stand and walk unsteadily. Called also rachitis..

Ascites :: Ascites (n.) A collection of serous fluid in the cavity of the abdomen; dropsy of the peritoneum.

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

Diaphragm :: Diaphragm (n.) The muscular and tendinous partition separating the cavity of the chest from that of the abdomen; the midriff.

Supportful :: Supporter (n.) A broad band or truss for supporting the abdomen or some other part or organ.

Sphex :: Sphex (n.) Any one of numerous species of sand wasps of the genus Sphex and allied genera. These wasps have the abdomen attached to the thorax by a slender pedicel. See Illust. of Sand wasp, under Sand..

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

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..

Colic :: Colic (n.) A severe paroxysmal pain in the abdomen, due to spasm, obstruction, or distention of some one of the hollow viscera..

Crab :: Crab (n.) One of the brachyuran Crustacea. They are mostly marine, and usually have a broad, short body, covered with a strong shell or carapace. The abdomen is small and curled up beneath the body..

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..

Stomate :: Stomapoda (n. pl.) An order of Crustacea including the squillas. The maxillipeds are leglike in form, and the large claws are comblike. They have a large and elongated abdomen, which contains a part of the stomach and heart; the abdominal appendages are large, and bear the gills. Called also Gastrula, Stomatopoda, and Squilloidea..

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