Meaning of OPTICALLY in English

OPTICALLY

ˈäptə̇k(ə)lē, -tēk-, -li adverb

Etymology: optical + -ly

1. : by means of sight : with or to the eye

as viewed optically

an optically accurate measurement

2. : with reference to or by means of optics or to optical properties

vitamins measured optically

optically ground surfaces

— compare optically active

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.