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Optical   /ˈɑptɪkəl/   Listen
Optical

adjective
1.
Of or relating to or involving light or optics.
2.
Relating to or using sight.  Synonyms: ocular, optic, visual.  "An optical illusion" , "Visual powers" , "Visual navigation"
3.
Of or relating to or resembling the eye.  Synonyms: ocular, opthalmic, optic.  "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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"Optical" Quotes from Famous Books



... seemed surrounded by a beautiful sheet of water, and so certain was his Greek interpreter, who was acquainted with the country, of this fact, that he was quite indignant at an Arab, who attempted to explain to him, that it was a mere optical delusion. At length, they reached Rosetta in about two hours, without meeting any water; and, on looking back on the sand they had just crossed, it seemed to them, as if they had just waded through a ...
— Thaumaturgia • An Oxonian

... at the entirely reasonable conclusion that he was in love. He had every symptom of that malady. When Miss Marian Chapman was within range of his vision there was room for no one else there. He suffered from that peculiar optical condition which enabled him to see but one thing at a time when she was present, and she was that one thing, which was probably the reason why in his mind's eye she was the only woman in the world, for Marian was ...
— The Water Ghost and Others • John Kendrick Bangs

... "will multiply them almost infinitely, and natural selection will pick out with unerring skill each improvement. Let this process go on for millions of years, and during each year on millions of individuals of many kinds; and may we not believe that a living optical instrument might be thus formed as superior to one of glass, as the works of the Creator are to those ...
— Evolution, Old & New - Or, the Theories of Buffon, Dr. Erasmus Darwin and Lamarck, - as compared with that of Charles Darwin • Samuel Butler

... have not reached the ultimate accessible structure of this organ. If we place a portion of the surface under one of the finest of our most powerful lenses, this will be the result.[6] Now, without discussing the real optical or anatomical value of this result as it stands, what I desire to ...
— Scientific American Supplement, Vol. XIX, No. 470, Jan. 3, 1885 • Various

... heavenly bodies in the speculations of the old Greek thinkers. Galilei (1564-1642) enlarged the Copernican system with the aid of the telescope; and the telescope was an outcome of the new study of optics which had been inspired in Roger Bacon and other medieval scholars by the optical works, directly founded on the Greek, of the Spanish Moors. Giordano Bruno still further enlarged the system; he pictured the universe boldly as an infinite ocean of liquid ether, in which the stars, with retinues of inhabited planets, floated majestically. Bruno was burned ...
— The Story of Evolution • Joseph McCabe


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