RASH. An eruption on the skin.
RATION. A stated or fixed amount; an allowance.
RATIONAL. Reasonable.
RATIONALE. A statement of reasons.
RECIPROCAL. Mutual; mutually interchangeable.
RECTUM. The lower part of the large intestine.
RECUMBENT. Reclining; lying.
RCUPERATION. Return to health; convalescence.
RECUR. To occur again; to be repeated after intervals.
REFLEX. An involuntary action from nerve-stimulus.
REFUTE. To prove to be false or erroneous.
REGIME. Mode or system of rule or management.
REGIMEN. The methodic use of food.
REGURGITATION. The flowing back into the vessels of the heart of the blood which has just left them.
RELAXATION. Absence of tension, usually with reference to the muscles.
REMEDY. An agent used in the treatment of disease.
REPLICA. A copy of an original.
RESIDUE. That which remains.
RESPIRATION. Inspiration and exhalation of air by the lungs.
RHEUMATISM. A disease symptom with fever, pain, inflammation and swelling of the joints.
RIGIDITY. Stiffness; immobility.
ROTARY. Having a motion on its axis like a wheel.
ROTATION. Turning on the axis.
RUDIMENT. That which is unformed or undeveloped.
