Etymology
Advertisement

optical (adj.)

1560s, "relating to or connected with the science of optics; pertaining to vision," from optic + -al (1). Of abstract art, from 1964. In astronomy, in reference to double stars that appear so only because they lie in the same line of sight from earth, by 1868. Optical illusion is attested by 1757. Related: Optically.

Others are reading

Advertisement
Advertisement
Definitions of optical

optical (adj.)
of or relating to or involving light or optics;
optical supplies
optical (adj.)
relating to or using sight;
an optical illusion
Synonyms: ocular / optic / visual
optical (adj.)
of or relating to or resembling the eye;
the optic (or optical) axis of the eye
Synonyms: ocular / optic / ophthalmic
From wordnet.princeton.edu