Found 1 hit - Term: visual ray, Database: *, Strategy: prefix
- [1] : The Collaborative International Dictionary of English v.0.48
visual \vis"ual\, a. l. visualis, from visus a seeing, sight:
cf. f. visuel. see vision.
1. of or pertaining to sight; used in sight; serving as the
instrument of seeing; as, the visual nerve.
1913 webster
the air,
nowhere so clear, sharpened his visual ray.
--milton.
1913 webster
2. that can be seen; visible. r.
1913 webster
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.
1913 webster
see also:
vision visual angle angle visual cone visual plane visual point
visual purple rhodopsin vision purple optography visual ray
visual white visual yellow
Results 1 - 2 of 2 found about visual ray: Cathode Ray
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Cathode Ray, definition of term: Cathode Ray
cathode+ray_pag1.html Cathode Ray Tub
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Cathode Ray Tub, definition of term: Cathode Ray Tub
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