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Pervicacity. [Obs.]

Careful watching. [Obs.]

Admitting passage; capable of being penetrated by another body or substance; permeable; as, a pervious soil. [Doors] . . . pervious to winds, and open every way. Pope.

The quality or state of being pervious; as, the perviousness of glass. Boyle.

See Parvis.

A pear tree. See Pirie. [Obs.]

A period in the American eocene, the lowest in the tertiary age except the lignitic.

A sensitized paper for obtaining positives by artificial light. It is coated with gelatin containing silver bromide and chloride. [Eng.]

The strength of a current of electricity carried by a conductor or generated by a machine, measured in ampères.

A unit, employed in calculating fall of pressure in distributing mains, equivalent to a current of one ampère flowing through one foot of conductor.

The quantity of electricity delivered in one hour by a current whose average strength is one ampère. It is used as a unit of quantity, and is equal to 3600 coulombs. The terms Ampère minute and Ampère second are sometimes similarly used.

A unit equal to the product of one complete convolution (of a coiled conductor) into one ampère of current; thus, a conductor having five convolutions and carrying a current of half an ampère is said to have 2½ ampère turns. The magnetizing effect of a coil is proportional to the number of its ampère turns.…

ard solution of nitrate of silver in water, deposits silver at the rate of 0.001118 grams per second. Called also the international ampère.

An instrument for measuring the strength of an electrical current in ampères.

A word used to describe the character Halliwell.

Producing one seed only in a seed pod.

A plant which has its seeds inclosed in a pericarp.

Same as Angiospermous.

Having seeds inclosed in a pod or other pericarp.

Opposition to imperialism; -- applied specif., in the United States, after the Spanish-American war (1898), to the attitude or principles of those opposing territorial expansion; in England, of those, often called Little Englanders, opposing the extension of the empire and the closer relation of its parts, esp. in matt…