Physiology. The science which treats of the phenomena and functions of animal life.
Pia Mater. The internal vascular membrane covering the brain.
Pimples on the face. Defined on [page 443].
Placenta. Afterbirth.
Plague. A malignant epidemic; begins in Asia Minor.
Plethora, Plethoric. Full of blood; maybe general or confined to a part.
Pleura. Defined on [page 64].
Pleurodynia. Spasmodic or rheumatic pain in the chest muscles.
Pleuro-pneumonia. Inflammation of both the pleura and lungs.
Pollution (self). Excitement of the sexual organs by the hand or other unnatural method.