
1) In an optical manner
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https://www.crosswordclues.com/clue/optically

• (adv.) By optics or sight; with reference to optics.
Found on
http://thinkexist.com/dictionary/meaning/optically/

By optics or sight; with reference to optics. ... <chemistry> Optically active, Optically inactive, terms used of certain metameric substances which, while identical with each other in other respects, differ in this, viz, that they do or do not produce right-handed or left-handed circular polarization of light. Optically positive, Optically n...
Found on
http://www.encyclo.co.uk/local/20973
Op'tic·al·ly adverb By optics or sight; with reference to optics.
Optically active ,
Optically inactive (Chem. Physics) ,
terms used of certain metameric substances which, while identical with each other in other respects, differ in this, viz., that they do or do not produ...
Found on http://www.encyclo.co.uk/webster/O/27
[adv] - in an optical manner
Found on http://www.webdictionary.co.uk/definition.php?query=optically
adverb in an optical manner; `optically distorted`
Found on https://www.encyclo.co.uk/local/20974
No exact match found.