Coffee is the second largest traded commodity in the world, next to crude oil. It’s also one of the oldest commodities, with over 2.25 billion cups of coffee consumed worldwide daily.
DIOPTRIC
Etymology
From Greek διοπτρικός. Compare diopter.
Adjective
dioptric (comparative more dioptric, superlative most dioptric)
(obsolete) Pertaining to a diopter.
Acting as a medium for sight; making use of refraction (of lenses, etc.).
(obsolete) Capable of being seen through.
Noun
dioptric (plural dioptrics)
(in the plural) The branch of optics concerned with refraction.
A dioptric telescope.
Anagrams
• diprotic, protidic, tripodic
Source: Wiktionary
Di*op"tric, a. (Optics)
Definition: Of or pertaining to the dioptre, or to the metric system of numbering glasses.
– n.
Definition: A dioptre. See Dioptre.
Di*op"tric, Di*op"tric*al, a. Etym: [Gr. dioptrique.]
Definition: Of or pertaining to dioptrics; assisting vision by means of the refraction of light; refractive; as, the dioptric system; a dioptric glass or telescope. "Dioptrical principles." Nichol. Dioptric curve (Geom.), a Cartesian oval. See under Cartesian.
Source: Webster’s Unabridged Dictionary 1913 Edition
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28 June 2025
ALLERGIC
(adjective) having an allergy or peculiar or excessive susceptibility (especially to a specific factor); “allergic children”; “hypersensitive to pollen”
Coffee Trivia
