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aspheric

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a⋅spher⋅i⋅cal

  [ey-sfer-i-kuhl]
Use aspheric in a Sentence
–adjective Optics.
(of a reflecting surface or lens) deviating slightly from a perfectly spherical shape and relatively free from aberrations.
Also, a⋅spher⋅ic.

Origin:
1920–25; a- 6 + spherical
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Frequency 55 Aspheric
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a·spher·ic   (ā-sfîr'ĭk, ā-sfěr'-)   
adj.  Varying slightly from sphericity and having only slight aberration, as a lens.
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: aspher·ic
Pronunciation: (')A-'sfi(&)r-ik, -'sfer-
Variant: or aspher·i·cal /-i-k&l/
Function:adjective
: departing slightly from the spherical form especially in order to correct for spherical aberration aspheric lens>
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Aspheric
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Custom Aspheres
10 mm - 240 mm diameter MRF Polished - Precision Glass
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