Dioptric Definition

dī-ŏptrĭk
adjective
Of or relating to dioptrics.
American Heritage
Of optical lenses or the method of numbering them according to their refractive powers; dioptral.
Webster's New World
Of dioptrics; refractive.
Webster's New World
Helping the sight by refractive correction.
Webster's New World
noun

A dioptric telescope.

Wiktionary

(in the plural) The branch of optics concerned with refraction.

Wiktionary

Other Word Forms of Dioptric

Noun

Singular:
dioptric
Plural:
dioptrics

Origin of Dioptric

  • Greek dioptrikos from dioptrā an optical instrument diopter

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Greek διοπτρικός. Compare diopter.

    From Wiktionary

Dioptric Sentence Examples

  • It is true that the dioptric apparatus was perfected independently by Fresnel, who had also the satisfaction of being the first to put it into operation.

  • This unit is called a "dioptric" (usually written "D").

  • All objects, therefore, which lie beyond a certain point (the conjugate focus of the dioptric system of the eye, the far point) are indistinctly seen; rays from them have not the necessary divergence to be focused in the retina, but may obtain it by the interposition of suitable concave lenses.

  • Ramsden's dioptric micrometer consists of a divided lens placed in the conjugate focus of the innermost lens of the erecting eye-tube of a terrestrial telescope.

  • But it is indisputable that Brewster was earlier in the field than Fresnel; that he described the dioptric apparatus in 1812; that he pressed its adoption on those in authority at least as early as 1820, two years before Fresnel suggested it; and that it was finally introduced into British lighthouses mainly by his persistent efforts.

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Words Starting With

DDIDIO

Words Ending With

CICRIC

Unscrambles

dioptric

Words Starting With D and Ending With C

Starts With D & Ends With CStarts With DI & Ends With CStarts With D & Ends With IC

Word Length

8 Letter Words8 Letter Words Starting With D8 Letter Words Ending With C