Chapter Pouter to Practically of P by Webster's Dictionary (1913 Edition)

11. (Optics) The degree to which a lens, mirror, or any optical instrument, magnifies; in the telescope, and usually in the microscope, the number of times it multiplies, or augments, the apparent diameter of an object; sometimes, in microscopes, the number of times it multiplies the apparent surface.

12. (Law) An authority enabling a person to dispose of an interest vested either in himself or in another person; ownership by appointment. Wharton.

13. Hence, vested authority to act in a given case; as, the business was referred to a committee with power.

Power may be predicated of inanimate agents, like the winds and waves, electricity and magnetism, gravitation, etc., or of animal and intelligent beings; and when predicated of these beings, it may indicate physical, mental, or moral ability or capacity.

Mechanical powers. See under Mechanical. — Power loom, or Power press. See Def. 8 (d), note. — Power of attorney. See under Attorney. — Power of a point(relative to a given curve) (Geom.), the result of substituting the coördinates of any point in that expression which being put equal to zero forms the equation of the curve; as, x² + y² - 100 is the power of the point x, y, relative to the circle x² + y² - 100 = 0.

Powerable
(Pow"er*a*ble) a.

1. Capable of being effected or accomplished by the application of power; possible. [R.] J. Young.

2. Capable of exerting power; powerful. Camden.

Powerful
(Pow"er*ful) a.

1. Full of power; capable of producing great effects of any kind; potent; mighty; efficacious; intense; as, a powerful man or beast; a powerful engine; a powerful argument; a powerful light; a powerful vessel.

The powerful grace that lies
In herbs, plants, stones, and their true qualities.

Shak.

2. (Mining) Large; capacious; — said of veins of ore.

Syn. — Mighty; strong; potent; forcible; efficacious; energetic; intense.

— Pow"er*ful*ly, adv. — Pow"er*ful*ness, n.

Powerless
(Pow"er*less), a. Destitute of power, force, or energy; weak; impotent; not able to produce any effect. — Pow"er*less*ly, adv. — Pow"er*less*ness, n.

Powldron
(Powl"dron) n. [OF. espauleron, from espaule shoulder, F. épaule.] Same as Pauldron.

Powp
(Powp) v. i. See Poop, v. i. [Obs.] Chaucer.

Powter
(Pow"ter) n. (Zoöl.) See Pouter.

Powwow
(Pow"wow`) n.

1. A priest, or conjurer, among the North American Indians.

Be it sagamore, sachem, or powwow.

Longfellow.

2. Conjuration attended with great noise and confusion, and often with feasting, dancing, etc., performed by Indians for the cure of diseases, to procure success in hunting or in war, and for other purposes.