VISUAL • FREE-TRANSLATOR.COM • Definition of Visual

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/vˈɪʒəwəl/ Listen

adjective

Visual adj.

1.

Of or pertaining to sight; used in sight; serving as the instrument of seeing; as, the visual nerve. "The air, Nowhere so clear, sharpened his visual ray."

2.

That can be seen; visible. (R.)

Visual angle. (Opt.) See under Angle.

Visual cone (Persp.), a cone whose vertex is at the point of sight, or the eye.

Visual plane, any plane passing through the point of sight.

Visual point, the point at which the visual rays unite; the position of the eye.

Visual purple (Physiol.), a photochemical substance, of a purplish red color, contained in the retina of human eyes and in the eyes of most animals. It is quickly bleached by light, passing through the colors, red, orange, and yellow, and then disappearing. Also called rhodopsin, and vision purple. See Optography.

Visual ray, a line from the eye, or point of sight.

Visual white (Physiol.), the final product in the action of light on visual purple. It is reconverted into visual purple by the regenerating action of the choroidal epithelium.

Visual yellow (Physiol.), a product intermediate between visual purple and visual white, formed in the photochemical action of light on visual purple.

See images of 'Visual'

Etymology of 'Visual'

Collaborative International Dictionary of English 0.48

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"Visual" Quotes from Famous Books

... empyrean or dissects a gaz, Weighs the vast orbs of heaven, bestrides the sky, Walks on the windows of an insect's eye; Turns then to self, more curious still to trace The whirls of passion that involve the race, That cloud with mist the visual lamp of God, And plunge the poniard in fraternal blood. Here fails his light. The proud Titanian ray O'er physic nature sheds indeed its day; Yet leaves the moral in chaotic jars, The spoil of violence, the sport of ...

— The Columbiad • Joel Barlow

... great one's admiration for a thing, there is always a final point of satiety at which the desire needs rest or balance. A woman may love flowers, for example, but in the season of flowers, when all nature supplies an over-abundance, the visual sense becomes satiated, and the house interior that is furnished in cool tints and two-tones ...

— Color Value • C. R. Clifford

... tongue required to pronounce the vowels, lip movements required to articulate certain consonants, and numerous others) are localized in the motor tract precisely as are all other impulses to special motor activities. In the same way control is lodged in the visual tract of the brain over all those processes of visual recognition involved in reading. Naturally the particular points or clusters of points of localization in the several tracts that refer to any element ...

— Language - An Introduction to the Study of Speech • Edward Sapir

... deceptions of sight and touch and hearing. I came upon these things in my reading, in the laboratory, with microscope or telescope, lived with them as constant difficulties. I will only instance one trifling case of visual deception in order to lead to my next question. One draws two ...

— First and Last Things • H. G. Wells

... caution spoken in a moment of intense excitement in which he hardly realised how far they had left the gunboat behind. But his orders were obeyed, utter stillness ruling on board the schooner till they had visual proof that there was no necessity ...

— Fitz the Filibuster • George Manville Fenn

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