| Rous tumour | <tumour> A fibrosarcoma, originally observed in a Plymouth Rock hen, now thought to be an expression of infection by certain viruses of the avian leukosis-sarcoma complex in the family Retroviridae. Synonym: avian sarcoma, Rous tumour. (05 Mar 2000) |
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| Rous, F Peyton | <person> U.S. Pathologist and Nobel laureate, 1879-1970. See: Rous sarcoma, Rous sarcoma virus, Rous tumour, Rous-associated virus. (05 Mar 2000) |
| Rous-associated virus | A leukaemia virus of the leukosis-sarcoma complex which by phenotypic mixing with a defective (noninfectious) strain of Rous sarcoma virus effects production of infectious sarcoma virus with envelope antigenicity of the RAV. (05 Mar 2000) |
| roussette | 1. <zoology> A fruit bat, especially the large species (Pieropus vulgaris) inhabiting the islands of the Indian ocean. It measures about a yard across the expanded wings. 2. <zoology> Any small shark of the genus Scyllium; called also dogfish. See Dogfish. Origin: F.; so called in allusion to the colour. See Russet. Source: Websters Dictionary (01 Mar 1998) |
| Roussy, Gustave | <person> French pathologist, 1874-1948. See: Roussy-Levy disease, Roussy-Levy syndrome, Dejerine-Roussy syndrome. (05 Mar 2000) |
| Roussy-Levy disease | A type of cerebellar ataxia regularly associated with wasting of the calves and intrinsic muscles of the hands and with absent tendon reflexes; pes cavus and claw toes develop; autosomal dominant inheritance. Synonym: Roussy-Levy syndrome. (05 Mar 2000) |
| Roussy-Levy syndrome | A type of cerebellar ataxia regularly associated with wasting of the calves and intrinsic muscles of the hands and with absent tendon reflexes; pes cavus and claw toes develop; autosomal dominant inheritance. Synonym: Roussy-Levy syndrome. (05 Mar 2000) |
| roustabout | A laborer, especially a deck hand, on a river steamboat, who moves the cargo, loads and unloads wood, and the like; in an opprobrious sense, a shiftless vagrant who lives by chance jobs. Origin: Etymol. Uncertain. Source: Websters Dictionary (01 Mar 1998) |
| routinary | Involving, or pertaining to, routine; ordinary; customary. Source: Websters Dictionary (01 Mar 1998) |
| routinely | usual, habitual, regular (18 Nov 1997) |
| Rouviere, Henri | <person> French anatomist and embryologist, *1875. See: node of Rouviere. (05 Mar 2000) |
| Roux spatula | A very small nickeled steel spatula used to transfer bits of infected material, such as diphtheritic membrane, to culture tubes. (05 Mar 2000) |
| Roux's method | Division of the inferior maxilla in the median line, to facilitate the operation of ablation of the tongue. (05 Mar 2000) |
| Roux's stain | <technique> A double stain for diphtheria bacilli which employs crystal violet or dahlia and methyl green. (05 Mar 2000) |
| Roux, Cesar | <person> Swiss surgeon, 1857-1934. See: Roux-en-Y anastomosis, Roux-en-Y operation. (05 Mar 2000) |