Petiole – Pharmacy
Petiole
the leaf stalk of a plant, the part connecting the blade with the stem. It is generally half cylindrical, often channeled above, but in some monocotyledons it is cylindrical, and in others
Petra
a ruined city, formerly the Nabathæan capital of Arabia Petræa, in in legal language to an application to a court or judge, as a petition for a divorce.
Petrograd
the name given St.
Petersburg, the capital of the Russian Empire, following the outbreak of the World War in 1914. The estimated popиlation in 1920 was 600,000.
Petroleuse
a name given to the women of the French Commune in 1871, accused of helping to burn the Tuileries, city hall, and other public buildings by pouring petroleum on them. The charge has been denied by some historians.
Petrology
the study of the mineralogical and chemical composition of rocks; including the various changes they have undergone through physical and chemical agencies, either combined or separate. Macroscopic and microscopic examination, together with chemical analysis, are the methods pursued.
Petropavlovsk
a town of Asiatic Russia, in the province of Akmolinsk, on the river Ishim, 175 miles W. N. W. of Omsk. It is an important military station, with a fort founded in 1752, and has a large transit trade. Pop. (1913) 42,340.
Petrozavodsk
a town of Russia, on the W. shore of Lake Onega, 300 miles N. E. of St. Petersburg, has a cannon foundry and small-arms factory, built in 1774.
Phalanger
in zoölogy, the popular English name for any individual of the sub-family Phalangistinæ. Phalangers are small woolly-coated marsupials, with opposable great toes, which are destitute of a nail. They are, for the most part, vegetable feeders, though some are insectivorous. They may be grouped in two classes, those with, and those without, a flying membrane.
Phalanx
in Greek antiquities, the close order of battle in which the heavyarmed troops of a Grecian army were usually drawn up. In anatomy, phalanges or phalanxes are the small bones of the fingers and toes, so called from their regular disposition. Normally each digit has three phalanxes. Called also internodes.
Phalaris
a small genus of grasses, of which the seed of one of the species, P. canariensis, or canary grass, is extensively employed as food for birds, and commonly known as canary seed.
Pharmacopeia
a book containing the prescriptions for the preparation of medicines recognized by the general body of practitioners. Up till 1863 separate pharmacopeias were issued by the Colleges of Physicians of London, Edinburgh, and Dublin. Since then a British pharmacopœia, issued by the medical council of the kingdom, is recognized by the whole medical profession of Great pharmacopœia.
Pharmacy
or PHARMACEUTICS, the art of preparing, compounding, and combining substances for medical purposes; the art of the apothecary.