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Capable of being perceived; cognizable; discernible; perceivable. With a perceptible blast of the air. Bacon. -- Per*cep"ti*ble*ness, n. -- Per*cep"ti*bly, adv.

Not perceptible; not to be apprehended or cognized by the souses; not discernible by the mind; not easily apprehended. Almost imperceptible to the touch. Dryden. Its operation is slow, and in some cases almost imperceptible. Burke. -- Im`per*cep"ti*ble*ness, n. -- Im`per*cep"ti*bly, adv. Their . . . subility and imper…

A loss or decay of sight, from loss of power in the optic nerve, without any perceptible external change in the eye; -- called also gutta serena, the "drop serene" of Milton.

Capable of being appreciated or estimated; large enough to be estimated; perceptible; as, an appreciable quantity. -- Ap*pre"ci*a*bly, adv.

Gulf of Mexico, from a lake, or from a large river, sometimes sluggish, sometimes without perceptible movement except from tide and wind. [Southern U. S.] A dark slender thread of a bayou moves loiteringly northeastward into a swamp of huge cypresses. G. W. Cable.

A power, attributed to some persons while in a mesmeric state, of discering objects not perceptible by the senses in their normal condition.

A partial separation of parts, with or without a perceptible opening; a chink or fissure; a narrow breach; a crevice; as, a crack in timber, or in a wall, or in glass.

To recede and grow fainter; to become imperceptible; to vanish; -- often with out or away. Blemishes may die away and disappear amidst the brightness. Spectator.

re so exactly balanced, that they have wholly neutralized each other, and no sweetness is perceptible; -- opposed to sweet wine, in which the saccharine matter is in excess.

Vanishing from notice; imperceptible. The difference between right and wrong, is some petty cases, is almost evanescent. Wollaston.

on or action; the active exercise of any power or faculty; an effort, esp. a laborious or perceptible effort; as, an exertion of strength or power; an exertion of the limbs or of the mind; it is an exertion for him to move, to-day.

Outwardly perceptible; visible; physical or corporeal, as distinguished from mental or moral. Her virtues graced with external gifts. Shak.

Lacking distinctness; hardly perceptible; striking the senses feebly; not bright, or loud, or sharp, or forcible; weak; as, a faint color, or sound.

Tin ore scarcely perceptible in the stone; tin ore stamped very fine. Pryce.

ing no loss of light; -- applied to reflectors which throw back the rays of light without perceptible loss.

Moisture; dampness; a moderate degree of wetness, which is perceptible to the eye or touch; -- used especially of the atmosphere, or of anything which has absorbed moisture from the atmosphere, as clothing.

or similitude of any person, thing, or act, sculptured, drawn, painted, or otherwise made perceptible to the sight; a visible presentation; a copy; a likeness; an effigy; a picture; a semblance. Even like a stony image, cold and numb. Shak. Whose is this image and superscription Matt. xxii. 20. This play is the image o…

Imperceptible. [R.] South. -- Im`per*ceiv"a*ble*ness, n. Sharp.

The state or quality of being imperceptible.

Not to be discerned; imperceptible; not discoverable or visible. Secret and indiscernible ways. Jer. Taylor. -- In`dis*cern"i*ble*ness, n. -- In`dis*cern"i*bly, adv.