optical

Meanings

1. 1
   adj

   of or relating to or involving light or optics

   optical supplies

2. 2
   adj

   Of or relating to sight; visual.

   Strabismus is an optical defect.

3. 3
   adj

   Designed to assist or enhance sight

   A microscope is an optical instrument.

4. 4
   adj

   Of or relating to optics.

   Refraction is an optical effect.

5. 5
   adj

   Of or relating to visible light.

   Optical telescopes don't work when it is cloudy.

6. 6
   adj

   Incorporating light-sensitive devices.

   An optical switch opens the door automatically.

7. 7
   noun

   Any special effect requiring laboratory work on the film.

   It is a glossy film with gross, opulent opticals and little comic, or any, relief; it has the jaundiced complexion of an early 60s underground film, which it is; it is ponderous, Wagnerian, and feels about five hours long (its running time is about an hour).

8. 8
   adj

   relating to or using sight

Etymology

From optic + -al.