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Power of lasting, enduring, or resisting; durability. The durableness of the metal that supports it. Addison.

To become small; to diminish in size. Strange power of the world that, the moment we enter it, our great conceptions dwarf. Beaconsfield.

An element, atom, or radical having a valence or combining power of two.

t for measuring the intensity of the photogenic (light-producing) rays, and computing the power of object glasses.

An instrument for determining the magnifying power of telescopes, consisting usually of a doubleimage micrometer applied to the eye end of a telescope for measuring accurately the diameter of the image of the object glass there formed; which measurement, compared with the actual diameter of the glass, gives the magnify…

Of or pertaining to dynamics; belonging to energy or power; characterized by energy or production of force. Science, as well as history, has its past to show, -- a past indeed, much larger; but its immensity is dynamic, not divine. J. Martineau. The vowel is produced by phonetic, not by dynamic, causes. J. Peile.…

That department of musical science which relates to, or treats of, the power of tones.

The act of setting free the dynamic powers of a medicine, as by shaking the bottle containing it.

Pertaining to the development of electricity, especially electrical currents, by power; producing electricity or electrical currents by mechanical power.

A dynamometer to which is attached a device for automatically registering muscular power.

An apparatus for measuring force or power; especially, muscular effort of men or animals, or the power developed by a motor, or that required to operate machinery.

The sense of hearing; the perception of sounds; the power of discriminating between different tones; as, a nice ear for music; -- in the singular only. Songs . . . not all ungrateful to thine ear. Tennyson.

hat a few seconds before the occurrence of an earthquake the magnet temporarily loses its power.

o flow back; to return, as the water of a tide toward the ocean; -- opposed to flow. That Power who bids the ocean ebb and flow. Pope.

d violently ejects its seeds, together with a mucilaginous juice, from which elaterium, a powerful cathartic medicine, is prepared.

An alkaloid constituting the active principle of ergot; -- so named from its power of producing abortion.

d is elevated above the reach of ordinary impressions, as when under the influence of overpowering emotion; an extraordinary elevation of the spirit, as when the soul, unconscious of sensible objects, is supposed to contemplate heavenly mysteries. Like a mad prophet in an ecstasy. Dryden. This is the very ecstasy of lo…

A public command or ordinance by the sovereign power; the proclamation of a law made by an absolute authority, as if by the very act of announcement; a decree; as, the edicts of the Roman emperors; the edicts of the French monarch. It stands as an edict in destiny. Shak. Edict of Nantes (French Hist.), an edict issued…

Power to produce results; efficiency; force; importance; account; as, to speak with effect.

Having the power to produce an effect or effects; producing a decided or decisive effect; efficient; serviceable; operative; as, an effective force, remedy, speech; the effective men in a regiment. They are not effective of anything, nor leave no work behind them. Bacon. Whosoever is an effective, real cause of doing h…