Polyp. An aquatic animal, as the coral builders.
Polypi. More than one polypus.
Polypoid. Like a polypus in shape or construction.
Polypus. Tumors which grow from mucous membranes, commonly found in the nasal and vaginal cavities.
Portal vessels. The cluster of veins which join and enter the liver.
Pott's Disease. Described on [page 898]; illus. [pages 898] and [899].
Poultice. A mixture of bread or meal, etc., and hot water, spread on a cloth and applied to the surface.
Pox. Syphilis.
Precocity. Prematurely developed.
Prehension. Carrying food to the mouth.