Stethoscope. An instrument for examining the heart and lungs.

Stimulants. Medicines which increase the vital activity of the body.

Stool. Evacuations of the bowels. Dung.

Strabismus. Cross-eyes.

Strangulated. Caught or fastened in the hernial canal.

Striated. Grooved or striped.

Stricture. A contracted condition of a canal or passage; of the food-pipe, rectum, urethra, etc.

Structural. Belonging to the arrangements of tissues or organs.

Strumous. Scrofulous.

Stupor. Great diminution of sensibility.