| rother | <zoology> Bovine. A bovine beast. Rother beasts, cattle of the bovine genus; black cattle. Rother soil, the dung of rother beasts. Origin: AS. Hryther; cf. D. Rund. Source: Websters Dictionary (01 Mar 1998) |
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| Rothera's nitroprusside test | A test for ketone bodies; 5 ml of fresh urine are saturated with solid ammonium sulfate and mixed with 10 drops of freshly prepared 2% sodium nitroprusside solution, which is then mixed with 10 drops of concentrated ammonia water and allowed to stand for 15 min; the presence of acetoacetic acid, or of larger concentrations of acetone, is indicated by the development of a blue-purple colour. (05 Mar 2000) |
| Rothera, Arthur | <person> English biochemist, 1880-1915. See: Rothera's nitroprusside test. (05 Mar 2000) |