| opticopupillary | Relating to the optic nerve and the pupil. (05 Mar 2000) |
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| optics | That branch of physical science which treats of the nature and properties of light, the laws of its modification by opaque and transparent bodies, and the phenomena of vision. Origin: Cf. F. Optique, L. Optice, Gr. (sc). See Optic. Source: Websters Dictionary (01 Mar 1998) |