Rouge de Prusse. Light red or burnt yellow ochre. See Red pigments.
Rouge, Spanish Lady’s. This is cotton wool which has been repeatedly wetted with an ammoniacal solution of carmine, and dried. It is applied like ‘rouge crepons.’
Rouge d’Athenes, Vert. Syn. Pure rouge. See Carthamine.
ROUGH′ENING. See Wines.
RUBEFA′′CIENTS. Syn. Rubefacientia, L. Substances or agents which, when applied for a certain time to the skin, occasion a redness and increase of heat, without blistering. They act as counter-irritants. Mustard, powdered ginger (both made into a paste with water), hartshorn and oil, and ether and spirit of wine (when their evaporation is prevented), are familiar examples of this class of remedies.
RUBE′OLA. See Measles.
RUBIA′CIN. An orange-coloured substance, obtained from madder.
RUBID′IUM. [Eng., L.] A metal belonging to the alkaline group discovered by Bunsen and Kirchhoff by means of spectrum analysis. It is found in many mineral waters associated with cæsium.
RU′BY. See Gems and Pastes.
RUE. Syn. Rutæ folia, Ruta (Ph. L. & E.), L. “The leaf Ruta graveolens.” (Ph. L.) A powerful antispasmodic, diuretic, and stimulant. It is also reputed nervine and emmenagogue. The fresh leaves are powerfully acrid, and even vesicant; but they become milder in drying.—Dose. Of the powder, 15 to 30 gr., twice or thrice daily; in hysteria, flatulent colic, &c. See Infusion and Oils (Volatile).