Pustule. Elevations of the skin containing pus.

Pyrexia. Fever; the febrile condition.

Pyrosis. Water brash.

Quarantine. Inhibition of intercourse; isolation.

Quartan. Recurring every fourth day.

Quickening. The first motion of the fœtus felt by the mother.

Rales. Sounds produced in the lungs when there is mucus in the air passages.

Ramus. A branch.

Rectum. The terminal part of the large intestines.

Reduction. The restoring of displaced parts.