the point where the optic nerve enters the retina; not sensitive to light
of or relating to fiber optics
relating to or using sight
the organ of sight
sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove
something with a round shape resembling a flat circular plate
(computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored
a flat circular plate
