Definition of dioptric in English:

Share this entry


Pronunciation: /dīˈäptrik/


Relating to the refraction of light, especially in the organs of sight or in devices that aid or improve the vision.
Example sentences
  • The dioptric power of this liquid lens depends on the refractive indices of the materials and the radius of curvature of the interface.
  • The dioptric system helps focus the image on the retina.
  • If the lens had an index of 1.53, the dioptric value of that radius of curvature would be 4.64 diopters.


Mid 17th century: from Greek dioptrikos, from dioptra, a kind of theodolite (see diopter).

For editors and proofreaders

Syllabification: di·op·tric

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.