Dictionary.com
Thesaurus.com
Showing results for aplanatic. Search instead for aplanatism.

aplanatic

American  
[ap-luh-nat-ik] / ˌæp ləˈnæt ɪk /

adjective

Optics.
  1. free from spherical aberration and coma.


aplanatic British  
/ ˌæpləˈnætɪk /

adjective

  1. (of a lens or mirror) free from spherical aberration

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • aplanatically adverb

Etymology

Origin of aplanatic

1785–95; a- 6 + Greek planá ( ein ) to wander + -tic. See planet

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Mr. Orguly Bolp's large painting, entitled "Embrocation," is an interesting experiment in the handling of aplanatic surfaces, in which the toxic determinants are harmonized by a sort of plastic meiosis with syncopated rhythms.

From Punch, or the London Charivari, Vol. 150, April 5, 1916 by Seaman, Owen, Sir

The aplanatic triplets after Steinheil are remarkable for their large, flat field and excellent definition, free from chromatic aberration.

From Microscopes and Accessory Apparatus Catalogue No. 40 by Leitz, Ernst

It was thought that the use of this Herschel aplanatic combination as an eyepiece, combined with the Wollaston doublet for the objective, came as near perfection as the compound microscope was likely soon to come.

From A History of Science — Volume 4 by Williams, Henry Smith

The aplanatic lenses Nos. 62-66 are also to be had with a moveable cover and ring adapting them for use as pocket lenses.

From Microscopes and Accessory Apparatus Catalogue No. 40 by Leitz, Ernst

"Kipper on toast" is not nearly so rich in carbohydrates, calories and aplanatic amygdaloids as "Kipper meat."

From Punch, or the London Charivari, Volume 156, Jan. 15, 1919 by Various