| congelation urticaria | Wheal formation that develops after exposure to lowered temperatures, with or without demonstrable passive-transfer antibodies. Synonym: congelation urticaria. (05 Mar 2000) |
|---|---|
| congener | 1. One of two or more things of the same kind, as of animal or plant with respect to classification. 2. One of two or more muscles with the same function. Origin: L. Con-, with, + genus, race (05 Mar 2000) |
| congenericity | <zoology> Congeneric species are species belonging to the same genus. Congeneric applied to generic names usually implies that the names refer to the same taxon i.e. Synonymous genera. (09 Jan 1998) |
| congenerous | 1. Having the same function; denoting certain muscles that are synergistic. 2. Derived from the same source, or of a similar nature. Origin: see congener (05 Mar 2000) |
| congenic | <cell biology> Organisms that differ in genotype at (ideally) one specified locus. Strictly speaking these are conisogenics. Thus one homozygous strain can be spoken of as being congenic to another. (18 Nov 1997) |
| congenic strain | An inbred strain of animals produced by continued crossing of a gene of one line onto another inbred (isogenic) line. (05 Mar 2000) |
| congenital | <embryology> Existing at and usually before, birth, referring to conditions that are present at birth, regardless of their causation. Origin: L. Congenitus = born together (18 Nov 1997) |
| congenital absence of pulmonary valve | <radiology> BIG central pulmonary arteries, big RV (12 Dec 1998) |
| congenital adrenal hyperplasia | <endocrinology> A genetic disorder present at birth characterised by a deficiency of the hormones aldosterone and cortisol and an overproduction of male sex hormones (androgens). In males this may manifest as enlarged penis, small testes and early development of masculine characteristics. In females features include ambiguous genitalia, failure to menstruate, deep voice and excessive hair. Origin: Gr. Plassein = to form (27 Sep 1997) |
| congenital afibrinogenaemia | <biochemistry> A below normal level of fibrinogen in the plasma. Fibrinogen (factor II) is one of the proteins involved in the formation of a blood clot. This condition may be congenital or acquired (for example disseminated intravascular coagulation, multiple blood transfusions). Origin: Gr. Haima = blood (27 Sep 1997) |
| congenital amputation | Amputation produced in utero; attributed to the pressure of constricting bands (amniotic); autosomal recessive inheritance. Synonym: amniotic amputation, amputation, birth amputation, intrauterine amputation, spontaneous amputation. (05 Mar 2000) |
| congenital anaemia | <haematology> A condition which develops in the foetus due to an incompatibility between the mother's blood type (RH factor) and the baby's. Maternal antibodies, which enter the foetal circulation during delivery attack the baby's red blood cells leading to haemolysis (rupture of the cells). Symptoms include an infant with an enlarged liver and spleen, swelling, jaundice and anaemia. (27 Sep 1997) |
| congenital ankyloblepharon | Congenital adhesion of the upper and lower eyelid by bands of tissue. Synonym: filiform adnatum. Origin: ankylo-+ G. Blepharon, eyelid (05 Mar 2000) |
| congenital antithrombin III deficiency | Antithrombin III is a protein which stimulates the removal of blood clots in the bloodstream. Small blood clots form normally within the bloodstream, but are normally dissolved via the bodys antithrombin III. The deficiency of antithrombin III will result in an increased risk for blood clot formation causing organ damage. This is an inherited as a autosomal dominant trait. Inheritance: autosomal dominant. (27 Sep 1997) |
| congenital aplasia of thymus | diGeorge syndrome |