Refrigerant. Cooling medicines which lessen the heat of the body.

Regimen. The systematic use of the necessaries of life.

Remission. Temporary abatement of symptoms.

Renal. Pertaining to the kidneys.

Resection. Taking out a portion of bone.

Resolution. Gradual subsidence of a disease.

Retroflexion. Being bent over backwards.

Retroversion. Turning or falling backwards.

Revulsives. Appliances which remove a disease by causing a determination to some other part.

Rhythm. Measured beat or movement.