Pelvis. The bony arch to which the hind-limbs of vertebrate animals are articulated.
Placentalia, Placentata, or Placental Mammals. See Mammalia.
Protozoa. The lowest great division of the Animal Kingdom. These animals are composed of a gelatinous material, and show scarcely any trace of distinct organs. The infusoria, foraminifera, and sponges, with some other forms, belong to this division.
Phenomenon. 1. An appearance; anything visible; whatever is presented to the eye; whatever, in matter or spirit, is apparent to, or is apprehended by, observation, as distinguished from its ground, substance, or unknown constitution; as phenomena of heat or electricity; phenomena of imagination or memory.
2. Sometimes a remarkable or unusual appearance whose cause is not immediately obvious.
Plexus. Any net-work of vessels, nerves, or fibers.
Polygamy. A plurality of wives or husbands at the same time, or the having of such plurality; usually the condition of a man having more than one wife.
Polytheism. The doctrine of a plurality of gods or invisible beings superior to man, and having an agency in the government of the world.
Proteine (n. Lat., proteinum, from Gr., first—to be the first—the first place, chief rank, because it occupies the first place in relation to the albuminous principles). (Chem.) A substance claimed by Mulder to be obtained as a distinct substance from albumen, fibrine, or caseine, and considered by him to be the basis of animal tissue and of some substances of vegetable origin.
The theory of proteine can not be maintained.—Gregory.
The theory of Mulder is doubted and denied by many chemists, and also the existence of proteine as a distinct substance.