| giant hypertrophy of gastric mucosa | Gastric mucosal hyperplasia, either mucoid or glandular; the latter type may be associated with the Zollinger-Ellison syndrome. Synonym: giant hypertrophy of gastric mucosa, hypertrophic gastritis, Menetrier's syndrome. (05 Mar 2000) |
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| giant lymph node hyperplasia | Large benign, hyperplastic lymph nodes. The more common hyaline vascular subtype is characterised by small hyaline vascular follicles and interfollicular capillary proliferations. Plasma cells are often present and represent another subtype with the plasma cells containing IgM and IgA. (12 Dec 1998) |
| giant melanosome | A large spherical melanosome (1 to 6 u in diameter) formed in the cytoplasm of melanocytes in cafe-au-lait spots and other melanocytic disorders. Synonym: macromelanosome. (05 Mar 2000) |
| giant osteoid osteoma | A benign, painful, tumour of bone characterised by the formation of osteoid tissue, primitive bone and calcified tissue. It occurs frequently in the spine of young persons. (12 Dec 1998) |
| giant pigmented nevus | These large pigmented (often hairy) congenital nevi are important because of their increased risk (10 to 15%) of conversion into malignant melanoma. A biopsy can confirm if cells have turned malignant. Any change in a pre-existing nevus should prompt a physician evaluation. (27 Sep 1997) |
| giant urticaria | A vascular reaction involving the deep dermis or subcutaneous or submucal tissues, representing localised oedema caused by dilatation and increased permeability of the capillaries and characterised by development of giant wheals. (18 Nov 1997) |
| giantess | A woman of extraordinary size. Source: Websters Dictionary (01 Mar 1998) |
| giantism | A condition where there is over-production of growth hormone by the pituitary gland in a child before the bone growth plates close, resulting in excessive long bone growth. (27 Sep 1997) |
| Giardia | <protozoa> Genus of flagellate protozoans which are free swimming parasites that inhabits the gastrointestinal tract of vertebrates and causes gastroenteritis in man (Giardia lamblia). The cells have a large disc or sucker on their anterior ventral surfaces, by which they attach to the intestinal mucosa. The attachment of the disc is very strong and can prevent peristaltic clearing. This can result in acute or chronic diarrhoea especially in children, although infection, which occurs by ingestion of spores, may be asymptomatic. The disease is termed Giardiasis or Lambliasis. (17 Dec 1997) |
| Giardia intestinalis | A species of parasitic protozoa that attaches itself to the intestinal mucosa and feeds on mucous secretions. The organism is roughly pear-shaped and motility is somewhat erratic, with a slow oscillation about the long axis. Considered for many years to be non-pathogenic and often found in completely asymptomatic individuals, there is presently strong evidence for its pathogenic potential. (12 Dec 1998) |
| giardia lamblia | A species of parasitic protozoa that attaches itself to the intestinal mucosa and feeds on mucous secretions. The organism is roughly pear-shaped and motility is somewhat erratic, with a slow oscillation about the long axis. Considered for many years to be non-pathogenic and often found in completely asymptomatic individuals, there is presently strong evidence for its pathogenic potential. (12 Dec 1998) |
| giardiasis | An infection of the small intestine caused by the flagellated protozoan giardia lamblia. It is spread via contaminated food and water and by direct person-to-person contact. (12 Dec 1998) |
| giardiavirus | A genus of RNA protozoan viruses of the family totiviridae. It infects many isolates of the flagellated protozoan human parasite g. Lamblia, but does not seem to be associated with the virulence of the parasite. The type species is giardia lamblia virus. (12 Dec 1998) |
| giardin | <protein> Group of proteins, of 29-38 kD, found in the ventral discs of Giardia lamblia. (17 Dec 1997) |
| gib | A male cat; a tomcat. Origin: Abbreviated fr. Gilbert, the name of the cat in the old story of "Reynard the Fox". In the "Romaunt of the Rose", etc. A piece or slip of metal or wood, notched or otherwise, in a machine or structure, to hold other parts in place or bind them together, or to afford a bearing surface; usually held or adjusted by means of a wedge, key, or screw. <engineering> Gib and key, or Gib and cotter, the fixed wedge or gib, and the driving wedge,key, or cotter, used for tightening the strap which holds the brasses at the end of a connecting rod. Origin: Etymol. Uncertain. Source: Websters Dictionary (01 Mar 1998) |