| ascidian | <zoology> One of the Ascidioidea, or in a more general sense, one of the Tunicata. Also as an Origin: Gr. Bladder, pouch. Source: Websters Dictionary (01 Mar 1998) |
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| ascidiarium | <zoology> The structure which unites together the ascidiozooids in a compound ascidian. Origin: NL. See Ascidium. Source: Websters Dictionary (01 Mar 1998) |
| ascidiform | <zoology> Shaped like an ascidian. Origin: Gr. A pouch. Source: Websters Dictionary (01 Mar 1998) |
| ascidioidea | <zoology> A group of Tunicata, often shaped like a two-necked bottle. The group includes, social, and compound species. The gill is a netlike structure within the oral aperture. The integument is usually leathery in texture. Origin: NL, fr. Ascidium. See Ascidium. Source: Websters Dictionary (01 Mar 1998) |
| ascidiozooid | <zoology> One of the individual members of a compound ascidian. See Ascidioidea. Origin: Ascidium + zooid. Source: Websters Dictionary (01 Mar 1998) |
| ascidium | Origin: NL, fr. Ascus. See Ascus. 1. <botany> A pitcher-shaped, or flask-shaped, organ or appendage of a plant, as the leaves of the pitcher plant, or the little bladderlike traps of the bladderwort (Utricularia). 2. <zoology> A genus of simple ascidians, which formerly included most of the known species. It is sometimes used as a name for the Ascidioidea, or for all the Tunicata. Source: Websters Dictionary (01 Mar 1998) |
| ascigerous | <botany> Having asci. Origin: Ascus. Source: Websters Dictionary (01 Mar 1998) |
| ascites | <clinical sign, gastroenterology> An effusion and accumulation of serous fluid in the abdominal cavity. Synonym: abdominal dropsy, peritoneal dropsy, hydroperitonia, hydrops abdominis. Origin: L, Gr. Askites from askos = bag (18 Nov 1997) |
| ascites adiposus | <gastroenterology> A large collection of lymph fluid in the abdominal cavity, sometimes secondary to blockage of the main lymph duct or injury to it. (27 Sep 1997) |
| ascites in neonates | <radiology> Urine, urethral valves, UPJ or UVJ obstruction, oedema: erythroblastalis foetalis, portal vein obstruction, hypoproteinaemia, pus, peritonitis, syphilis, meconium peritonitis, gastrointestinal contents, perforation, meconium peritonitis, blood, trauma, rupture of spleen or liver, chyle, chylous ascites, lymphangiectasia, bile, common bile duct obtruction, perforation, ruptured cyst, ovarian cyst, omental cyst, choledochal cyst (12 Dec 1998) |
| ascites tumour | <oncology> Tumour that grows in the peritoneal cavity as a suspension of cells. Obviously such cells have lost anchorage dependence and they can easily be isolated and passaged. Hybridomas are sometimes grown as ascites tumours and the ascites fluid can then be used as the crude antiserum. (18 Nov 1997) |
| ascitic | Relating to ascites. (05 Mar 2000) |
| ascitic agar | A form of serum agar. (05 Mar 2000) |
| ascitic fluid | The serous fluid which accumulates in the peritoneal cavity in ascites. (12 Dec 1998) |
| ascitic tumour | <oncology> A tumour of the abdominal cavity which often causes oedema in that cavity. (09 Oct 1997) |