DIOPTRICS

Noun

dioptrics

plural of dioptric

Noun

dioptrics (uncountable)

the study of the refraction of light, especially by lenses

Source: Wiktionary


Di*op"trics, n. Etym: [Gr. dioptrique.] (Optics)

Definition: The science of the refraction of light; that part of geometrical optics which treats of the laws of the refraction of light in passing from one medium into another, or through different mediums, as air, water, or glass, and esp. through different lenses;

– distinguished from catoptrics, which refers to reflected light.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

25 June 2025

DETENTION

(noun) a state of being confined (usually for a short time); “his detention was politically motivated”; “the prisoner is on hold”; “he is in the custody of police”


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Coffee Trivia

Coffee starts as a yellow berry, changes into a red berry, and then is picked by hand to harvest. The red berry is de-shelled through a water soaking process and what’s left inside is the green coffee bean. This bean then dries in the sun for 3-5 days, where it is then packed and ready for sale.

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