| cockayne syndrome | <radiology> Type of dysmyelinating disease, autosomal recessive, onset usually within 2nd year, (?) variant of Pelizaeus-Merzbacher disease, distinguish from Kearns-Sayre syndrome CT findings: microcephaly, basal ganglion calcification, cerebral atrophy (12 Dec 1998) |
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| Cockayne's disease | <syndrome> Dwarfism, precociously senile appearance, pigmentary degeneration of the retina, optic atrophy, deafness, sensitivity to sunlight, and mental retardation; autosomal recessive inheritance. There is a variant with early onset. Synonym: Cockayne's disease. (05 Mar 2000) |
| Cockayne's syndrome | <syndrome> Dwarfism, precociously senile appearance, pigmentary degeneration of the retina, optic atrophy, deafness, sensitivity to sunlight, and mental retardation; autosomal recessive inheritance. There is a variant with early onset. Synonym: Cockayne's disease. (05 Mar 2000) |
| Cockett communicating perforating veins | Mid-thigh perforation veins that connect the deep and superficial venous systems. (05 Mar 2000) |
| cockroaches | Insects of the family blattidae, order orthoptera. The most common cockroaches are periplaneta americana, the american cockroach; blatta orientalis, the oriental cockroach; and blattella germanica, the european cockroach. (12 Dec 1998) |
| cockscomb ulcer | An ulcer that may occur in association with condylomata acuminata. (05 Mar 2000) |
| cocktail | A mixture that includes several ingredients or drugs. Brompton cocktail, a cocktail of morphine and cocaine usually used for analgesia in terminal cancer patients; the formulations vary, but typically it contains 15 mg of morphine hydrochoride and 10 mg of cocaine hydrochloride per 10 ml of the cocktail. Origin: Brompton Chest Hospital, London, England, where developed (05 Mar 2000) |
| COCl | <abbreviation> Cathodal opening clonus. (05 Mar 2000) |
| cocoa | A powder prepared from the roasted kernels of the ripe seed of Theobroma cacao (family Sterculiaceae); used in the preparation of cocoa syrup, a flavoring agent. See: cacao. (05 Mar 2000) |
| cocoa butter | The fat obtained from the wasted seed of Theobroma cacao (family Sterculiaceae); it contains the glycerides of stearic, palmitic, oleic, arichidic, and linoleic acids; used as a base for suppositories and ointments and, in operative dentistry, as a lubricant and protective. Synonym: cacao butter, cocoa butter, cacao oil. Origin: G. Theos, a god, + broma, food (05 Mar 2000) |
| coconsciousness | A splitting of consciousness into two streams. (05 Mar 2000) |
| coconut | A tropical palm tree, cocos nucifera, that yields large, edible hard-shelled fruit from which oil and fibre are also obtained. (12 Dec 1998) |
| coconut sound | A sound like that produced when a cracked coconut is tapped; it is elicited by percussing the skull of a patient with osteitis deformans. (05 Mar 2000) |
| coconversion | The simultaneous correction of two sites on DNA during gene conversion. (05 Mar 2000) |
| cocto- | <prefix> Prefix indicating boiled or modified by heat. Origin: L. Coctus, cooked (05 Mar 2000) |