Simple Definition of optical
: used to help a person see
: relating to or using light
: involving the use of devices that get information for a computer by identifying patterns of light
Full Definition of optical
1 : of or relating to the science of optics
2 a : of or relating to vision : visual b : visible 1 <optical wavelength> c : of, relating to, or being objects that emit light in the visible range of frequencies <an optical galaxy> d : using the properties of light to aid vision <an optical instrument>
3 a : of, relating to, or utilizing light especially instead of other forms of energy <optical microscopy> b : involving the use of light-sensitive devices to acquire information for a computer <optical character recognition>
4 : of or relating to optical art
Examples of optical in a sentence
The company manufactures microscopes, telescopes, and other optical instruments.
<an optical illusion that fools most people>
First Known Use of optical
OPTICAL Defined for Kids
Seen and Heard
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