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dioptrical

 - 4 dictionary results

di⋅op⋅tric

  [dahy-op-trik]
Use dioptrical in a Sentence
–adjective
1. Optics. pertaining to dioptrics: dioptric images.
2. Optics, Ophthalmology. noting or pertaining to refraction or refracted light.
Also, di⋅op⋅tri⋅cal.

Origin:
1625–35; < Gk dioptrikós. See diopter, -ic

Related forms:
di⋅op⋅tri⋅cal⋅ly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To dioptrical
di·op·tric   (dī-ŏp'trĭk)   
adj.  

  1. Of or relating to dioptrics.

  2. Relating to optical refraction; refractive.


[From Greek dioptrikos, of a diopter, from dioptrā, diopter; see diopter.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: di·op·tric
Pronunciation: (')dI-'äp-trik
Variant: also di·op·tri·cal /-tri-k&l/
Function:adjective
1 : producing or serving in refraction of a beam of light : REFRACTIVE;specifically : assisting vision by refracting and focusing light dioptric power of a lens>
2 : produced by means of refraction dioptric images of objects in space that are formed on the retinas of the two eyes —Otto Glasser> —di·op·tri·cal·ly /-tri-k(&-)lE/ adverb
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Science Dictionary
dioptric   (dī-ŏp'trĭk)  Pronunciation Key 
Relating to the refraction of light, especially by a lens. Dioptric lenses are used in Fresnel lenses and camera viewfinders. Compare catadioptric, catoptric.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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