optical

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op·ti·cal

(ŏp′tĭ-kəl)

adj.

1. Of or relating to sight; visual: an optical defect.

2. Designed to assist sight: optical instruments.

3. Of or relating to optics.

4. Relating to or using visible light: optical astronomy.

5. Using light-sensitive devices.

op′ti·cal·ly adv.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

optical

(ˈɒptɪkəl)

adj

1. (General Physics) of, relating to, producing, or involving light

2. (Medicine) of or relating to the eye or to the sense of sight; optic

3. (Medicine) (esp of a lens) aiding vision or correcting a visual disorder

ˈoptically adv

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

op•ti•cal

(ˈɒp tɪ kəl)

adj.

1. of, pertaining to, or applying optics.

2. of or pertaining to the eye or sight.

3. constructed to assist sight.

4. dealing with or skilled in optics.

[1560–70]

op′ti•cal•ly, adv.

op·ti·cal

(ŏp′tĭ-kəl)

1. Relating to sight; visual.

2. Relating to optics.

3. Relating to or using visible light: optical astronomy.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ThesaurusAntonymsRelated WordsSynonymsLegend:

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Adj.	1.	optical - of or relating to or involving light or optics; "optical supplies"
	2.	optical - relating to or using sight; "ocular inspection"; "an optical illusion"; "visual powers"; "visual navigation" visual, ocular, optic
	3.	optical - 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" ocular, opthalmic, optic

optical

adjective

Serving, resulting from, or relating to the sense of sight:

optic, visual.

Translations

بَصَري، نَظَري

optisk

optisch

οπτικός

óptico

optikai

sjón-

ottico ottica

optisk syns-

оптический

optický

optičen

görme duygusuyla ilgilioptik

光学的

optical

[ˈɒptɪkəl] ADJ → óptico
optical disk → disco m óptico
optical fibre → fibra f óptica
optical illusion → ilusión f óptica
optical (character) reader → lector m óptico (de caracteres)
optical character recognition → reconocimiento m óptico de caracteres

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

optical

[ˈɒptɪk^əl] adj

[process, effect] → optique

[instrument] → optique
optical telescopes → des télescopes optiquesoptical character reader n → lecteur m optiqueoptical character recognition n → reconnaissance f optique des caractèresoptical disk n (COMPUTING) → disque m optiqueoptical fibre n → fibre f optiqueoptical illusion n → illusion f d'optique

Collins English/French Electronic Resource. © HarperCollins Publishers 2005

optical

adj → optisch

optical

optical character reader

n (Comput) → optischer Klarschriftleser

optical character recognition

n (Comput) → optische Zeichenerkennung

optical disk

n → optische Platte

optical fibre, (US) optical fiber

n (= material) → Glasfaser f; (= cable) → Glasfaserkabel nt

optical illusion

n → optische Täuschung

optical scanner

n → optischer Scanner

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

optical

[ˈɒptɪk/əl] adj → ottico/a

Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

optician

(opˈtiʃən) noun

a person who makes and sells spectacles and optical instruments. The optician mended my spectacles.

optical (ˈoptikəl) adjective

of or concerning sight or what one sees. The two objects in the picture appear to be the same size, but this is just an optical illusion (= they are not actually the same size); microscopes and other optical instruments.

op·tic

, optical

a. óptico-a, rel. a la visión;

___ disk → disco ___, punto ciego de la retina;

___ illusion → ilusión ___;

___ nerve → nervio ___.

optical, optic

adj óptico

References in classic literature ?

This young soldier knew the optical illusions produced by tears.

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As regards the optical instruments at their disposal, they had excellent marine glasses specially constructed for this journey.

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"On the whole tour, particularly at the Descent, we undergo an optical illusion which often seems to be incredible.

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The entire ship's crew were undergoing a nervous excitement, of which I can give no idea: they could not eat, they could not sleep--twenty times a day, a misconception or an optical illusion of some sailor seated on the taffrail, would cause dreadful perspirations, and these emotions, twenty times repeated, kept us in a state of excitement so violent that a reaction was unavoidable.

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If we must compare the eye to an optical instrument, we ought in imagination to take a thick layer of transparent tissue, with a nerve sensitive to light beneath, and then suppose every part of this layer to be continually changing slowly in density, so as to separate into layers of different densities and thicknesses, placed at different distances from each other, and with the surfaces of each layer slowly changing in form.

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"It is merely the effect of the MIRAGE," said the doctor, "and nothing else--a simple optical phenomenon due to the unequal refraction of light by different layers of the atmosphere, and that is all.

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Hence a thousand optical illusions, a thousand aberrations of judgment, a thousand deviations, in which his thought strayed, now mad, now idiotic.

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I have changed the principles of a lifetime, made the most brilliant optical experiment which any man of science has ever ventured to essay, with the result--well, you shall see.

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You know that optical instruments have acquired great perfection; with certain instruments we have succeeded in obtaining enlargements of 6,000 times and reducing the moon to within forty miles' distance.

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It must be something in the currents, or a sort of optical illusion, because in the last shipwreck one man was saved, and he swore that at the time they struck the rock, they were headed straight for the light."

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We, who have no such optical powers, are better pleased to take our last parting look at the visionary companions of many solitary hours, when the brief sunshine of the world is blazing full upon them.

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Perhaps the rapidity of the changes from one of these paces to the other created an optical illusion, which might thus magnify the powers of the beast; for it is certain that Heyward, who possessed a true eye for the merits of a horse, was unable, with his utmost ingenuity, to decide by what sort of movement his pursuer worked his sinuous way on his footsteps with such persevering hardihood.