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optical

adjective
 
 
/ˈɒp.tɪ.kəl/ US  /ˈɑːp-/

Definition

relating to light or the ability to see: an optical effect an optical microscopeEyesight, glasses and lensesUsing the eyesThe eye and surrounding areaOptics, microscopy and lasersThe qualities of light optically
 
 
/-i/ adverb
The qualities of lightEyesight, glasses and lensesUsing the eyesThe eye and surrounding areaOptics, microscopy and lasers
(Definition of optical adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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