Definition of refractor in English:

refractor

Syllabification: re·frac·tor
Pronunciation: /riˈfraktər
 
/

noun

1A lens or other object that causes refraction.
More example sentences
  • He contributed to the theory of refraction, and as a result of his theory of the wave form of light he was able to calculate the refraction within the lenses and make refractors with lesser chromatic and spherical aberration.
  • The results demonstrated that trained nurses and lay screeners achieved similar accuracy rates administering the two automated refractors.
  • An arc of white light shone through the carefully planned refractors near its crest, making the Citadel look like an archer's bow drawn to the sky.
1.1A refracting telescope.
More example sentences
  • Italian mathematician and astronomer Galileo Galilei used the first optical telescope, a refractor, in 1610.
  • Actually it was the biggest refractor (lens telescope); Sir William Herschel, who had died in 1822, had previously constructed larger reflecting telescopes (using curved mirrors) out at Slough.
  • This he equipped with a small refractor: a lens telescope with an aperture of four inches.

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