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English Dictionary: visual by the DICT Development Group
2 results for visual
From WordNet (r) 3.0 (2006) [wn]:
  1. relating to or using sight; "ocular inspection"; "an optical illusion"; "visual powers"; "visual navigation"
    Synonym(s): ocular, optic, optical, visual
  2. visible; "be sure of it; give me the ocular proof"- Shakespeare; "a visual presentation"; "a visual image"
    Synonym(s): ocular, visual
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
   Visual \Vis"u*al\, 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.
                     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
      {Visual yellow} (Physiol.), a product intermediate between
            visual purple and visual white, formed in the
            photochemical action of light on visual purple.
No guarantee of accuracy or completeness!
©TU Chemnitz, 2006-2019
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