| cold-blooded | <physiology> Having a varying body temperature. See Homoiothermal. Origin: Gr. Changeable + E. Thermal, thermic. Source: Websters Dictionary (01 Mar 1998) |
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| cold-blooded animal | <biology, zoology> An organism, such as a fish or reptile, that is cold-blooded, i.e., one whose internal body temperature varies with that of the environment. (09 Oct 1997) |
| cold bone lesions | <radiology> Overlying atenuation caused by pacemaker, barium, metal cross, wristwatch, radiation therapy, local vascular compromise, early osteomyelitis, tumour: neuroblastoma, renal cell carcinoma, thyroid carcinoma, anaplastic tumours (e.g. Reticulum cell sarcoma) (12 Dec 1998) |
| cold cautery | The surgical destruction of tissue via the application of extreme cold, aswith liquid nitrogen. (09 Oct 1997) |
| cold chain | A system of protection against high environmental temperatures for heat-labile vaccines, sera and other biological preparations. (05 Mar 2000) |
| cold, common | A viral upper respiratory tract infection. A contagious illness caused by a number of different types of viruses. Because of the great number of viruses that can cause a cold, the body never builds up resistance (immune) against all of them. For this reason, colds are a frequent and recurring problem. In fact, preschool children average 9 colds a year; those in kindergarten, 12 colds a year; and adolescents and adults, 7 colds per year. Going out into the cold weather has no effect on the spread of a cold. Antibiotics do not help the common cold. (12 Dec 1998) |
| cold compress | <orthopaedics> This may be ice packs wrapped in cloth to deliver a cold compress to an acutely injured muscle, joint or bone. Cold compresses are commonly indicated for most injuries in the first 24-48 hours. They should be applied only intermittently, with periods of time without the compress applied. (27 Sep 1997) |
| cold compresses | <orthopaedics> This may be ice packs wrapped in cloth to deliver a cold compress to an acutely injured muscle, joint or bone. Cold compresses are commonly indicated for most injuries in the first 24-48 hours. They should be applied only intermittently, with periods of time without the compress applied. (27 Sep 1997) |
| cold cone biopsy | <gynaecology, procedure> A procedure which excises a cone of tissue (mucous membrane) off the cervix for purpose of diagnostics and therapeutics (removes precancerous cells). See: cervical dysplasia. (27 Sep 1997) |
| cold cream | A water-in-oil emulsion of various oils, waxes, and water; the standard formula, rose water ointment, contains expressed almond oil, rose water, spermaceti, white paraffin wax, and sodium borate; used as a cleansing or lubricating cream. (05 Mar 2000) |
| cold cure resin | Autopolymerizing resin, any resin that can be polymerised by chemical catalysis rather than by the application of heat; used in dentistry for dental restoration, denture repair, and impression trays. Synonym: activated resin, cold cure resin, cold-curing resin, quick cure resin, self-curing resin. (05 Mar 2000) |
| cold erythema | Rash characterised by redness and itching, brought on by exposure to cold. (05 Mar 2000) |
| cold gangrene | A form of gangrene in which the involved part is dry and shriveled. Synonym: cold gangrene, mummification necrosis, mummification. (05 Mar 2000) |
| cold haemagglutinin disease | A condition associated with the presence of haemagglutinating autoantibody active in vivo but in vitro particularly or solely active in the cold; when the concentration of IgM antibody is high there may be increased serum viscosity, but clinical manifestations (due to haemagglutination) usually appear following exposure to cold; haemolysis usually is mild but may be severe, resulting in autoimmune haemolytic anaemia, cold antibody type. (05 Mar 2000) |
| cold haemolysin | An autoantibody of the IgG class responsible for paroxysmal cold haemoglobinuria; it is adsorbed to red cells only at temperatures of 20캜 or lower, causing the red cells to lyse in the presence of complement at higher temperatures; it has only slight agglutinating properties in spite of its marked lytic activity, and has a specificity within the blood group P; it is also occasionally present for short periods of time following measles and other infections, and formerly was frequently associated with syphilis. Synonym: cold haemolysin. (05 Mar 2000) |