optics

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op|tics /'ɒptɪks/
[N-UNCOUNT]
Optics is the branch of science concerned with vision, sight, and light.
see also fibre opticsfi|bre op|tics
The spelling fiber optics is also used in American English. The form fibre optic is used as a modifier.
1 [N-UNCOUNT]
Fibre optics is the use of long thin threads of glass to carry information in the form of light.
2 [ADJ] ADJ n
Fibre optic means relating to or involved in fibre optics.
...fibre optic cables.

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