| carrier state | A condition in which a human who is not himself sick harbors an infective organism which may cause disease in those to whom it is transmitted. (12 Dec 1998) |
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| carrier strain | A bacterial strain that is contaminated with a bacteriophage of low infectivity. Synonym: pseudolysogenic strain. (05 Mar 2000) |
| carrier test | A test designed to detect carriers of a gene for recessive genetic disorder. For example, carrier testing is done for sickle cell trait, thalassaemia trait, and the Tay-Sachs gene. (12 Dec 1998) |
| carrier-free | A substance in which a radioactive or other tagged atom is found in every molecule; the highest possible specific activity. (05 Mar 2000) |
| Carrington's disease | <radiology> Idiopathic, associated with allergies and desensitization, variant of Loeffler pneumonia, treatment: corticosteroids Findings: reverse pulmonary oedema pattern (= Loeffler's), areas of consolidation persists (days to weeks) see: eosinophilic lung disease (12 Dec 1998) |
| Carrion's disease | A generalised, acute, febrile, endemic, and systemic form of bartonellosis; marked by high fever, rheumatic pains, progressive, severe anaemia, and albuminuria. Synonym: Carrion's disease. (05 Mar 2000) |
| Carrion, Daniel | <person> Peruvian medical student, 1859-1885, who inoculated himself with a disease later designated as Carrion's disease, and died thereof. See: Carrion's disease. (05 Mar 2000) |
| carrots | A widely cultivated plant, daucus carota sativa, having finely divided leaves, flat clusters of small white flowers, and an edible, yellow-orange root and also the long tapering root of the carrot, eaten as a vegetable. (12 Dec 1998) |
| carrying angle | The angle made by the axes of the arm and the forearm, with the elbow in full extension. (05 Mar 2000) |
| carrying capacity | <ecology> The maximum average number or biomass of organisms that can be sustained in a habitat over the long term. Usually refers to a particular species, but can be applied to more than one. (09 Oct 1997) |