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

philosophy or doctrine which recognizes or deals only with externals, or objects of sense perception; positivism; phenomenalism.

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

To have perception by the touch, or by contact of anything with the nerves of sensation, especially those upon the surface of the body.

An act or state of perception by the sense above described; an act of apprehending any object whatever; an act or state of apprehending the state of the soul itself; consciousness. The apprehension of the good Gives but the greater feeling to the worse. Shak.

arts to anything a peculiar odor or taste, gratifying to the sense of smell, or the nicer perceptions of the palate; a substance which flavors.

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

Quick of perception; alert; sharp. [Scot.] Jamieson.

A short, hurried view; a transitory or fragmentary perception; a quick sight. Here hid by shrub wood, there by glimpses seen. S. Rogers.

Not easily aroused or excited; not sensitive in perception or feeling; dull; witless. Tell her of things that no gross ear can hear. Milton.

The perception of objects which have no reality, or of sensations which have no corresponding external cause, arising from disorder or the nervous system, as in delirium tremens; delusion. Hallucinations are always evidence of cerebral derangement and are common phenomena of insanity. W. A. Hammond.…

An ideal glory investing, or affecting one's perception of, an object.

The act or power of perceiving sound; perception of sound; the faculty or sense by which sound is perceived; as, my hearing is good. I have heard of thee by the hearing of the ear. Job xlii. 5.

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.

ved or thought of. Whatsoever the mind perceives in itself, or as the immediate object of perception, thought, or undersanding, that I call idea. Locke.

The act or process of inferring from premises or reasons; perception of the connection between ideas; that which is inferred; inference; deduction; conclusion. Fraudulent deductions or inconsequent illations from a false conception of things. Sir T. Browne.

originated by some external object, but so modified as in any way to lead to an erroneous perception; as when the rolling of a wagon is mistaken for thunder.

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.