Clap. Gonorrhea. A venereal disease of the urethra.

Clavicle. See Collar-bone.

Clinical medicine. Investigation of disease at the bedside.

Coagulate. To thicken or harden, as heat hardens the white of an egg.

Coition. Sexual intercourse. The act of generation.

Collar-bone (Clavicle). A bone at the front and top of chest, attached by one end to the breast-bone and by the other to the shoulder-blade.

Colon. Part of the large intestines. Illus. [page 40].

Coma. A condition of profound sleep from which it is difficult to arouse the patient.

Comedones. Pimples on the face. See [page 412], and Fig. 8. Plate II.

Compress. A soft cloth folded to several thicknesses, so that with a bandage pressure can be applied, or by wetting in hot water, a part can be subjected to the influences of heat and moisture.