PECAN n.
A species of hickory (Carya olivæformis), growing in North America, chiefly in the Mississippi valley and in Texas, where it is one of the largest of forest trees; also, its fruit, a smooth, oblong nut, an inch or an inch and a half long, with a thin shell and well- flavored meat. [Written also pacane.]…
PERSIAN a.
e fruit of Rhamnus infectorius, a kind of buckthorn, used for dyeing yellow, and imported chiefly from Trebizond. -- Persian cat. (Zoöl.) Same as Angora cat, under Angora. -- Persian columns (Arch.), columns of which the shaft represents a Persian slave; -- called also Persians. See Atlantes. -- Persian drill (Mech.…
PETREL n.
laria, and several allied genera. Diving petrel, any bird of the genus Pelecanoides. They chiefly inhabit the southern hemisphere. -- Fulmar petrel, Giant petrel. See Fulmar. -- Pintado petrel, the Cape pigeon. See under Cape. -- Pintado petrel, any one of several small petrels, especially Procellaria pelagica, or M…
PINCH n.
A lever having a projection at one end, acting as a fulcrum, -- used chiefly to roll heavy wheels, etc. Called also pinch bar. At a pinch, On a pinch, in an emergency; as, he could on a pinch read a little Latin.
POLARIZATION n.
l, by the deposition upon them of the gases liberated by the action of the current. It is chiefly due to the hydrogen, and results in an increase of the resistance, and the setting up of an opposing electro-motive force, both of which tend materially to weaken the current of the battery, or that passing through the cel…
PONTOON n.
tans, and other machinery, used in careening ships, raising weights, drawing piles, etc., chiefly in the Mediterranean; a lighter. Pontoon bridge, a bridge formed with pontoons. -- Pontoon train, the carriages of the pontoons, and the materials they carry for making a pontoon bridge.