VIS'UAL, a. s as z. [L. visus.]

Pertaining to sight; used in sight; serving as the instrument of seeing; as the visual nerve.

The air, no where so clear, sharpen'd his visual ray.

Visual point, in perspective, a point in the horizontal line, in which all the ocular rays unite.

Visual rays, lines of light, imagined to come from the object to the eye.