Similarity of adj optical

3 senses of optical

Sense 1
optical -- (of or relating to or involving light or optics; "optical supplies")

Sense 2
ocular, optic, optical, visual -- (relating to or using sight; "ocular inspection"; "an optical illusion"; "visual powers"; "visual navigation")

Sense 3
ocular, optic, optical, opthalmic -- (of or relating to or resembling the eye; "ocular muscles"; "an ocular organ"; "ocular diseases"; "the optic (or optical) axis of the eye"; "an ocular spot is a pigmented organ or part believed to be sensitive to light")

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