opalescence, iridescence
(noun) the visual property of something having a milky brightness and a play of colors from the surface
Source: WordNet® 3.1
opalescence (countable and uncountable, plural opalescences)
the state of being opalescent
(physics) the milky iridescent appearance of a dense transparent medium when it is illuminated by polychromatic visible radiation (such as sunlight) due to local fluctuations in its density and therefore in its refractive index
Source: Wiktionary
O`pal*es"cence, n. (Min.)
Definition: A reflection of a milky or pearly light from the interior of a mineral, as in the moonstone; the state or quality of being opalescent.
Source: Webster’s Unabridged Dictionary 1913 Edition
2 February 2025
(adverb) at or to or toward the back or rear; “he moved back”; “tripped when he stepped backward”; “she looked rearward out the window of the car”
The earliest credible evidence of coffee-drinking as the modern beverage appeared in modern-day Yemen. In the middle of the 15th century in Sufi shrines where coffee seeds were first roasted and brewed for drinking. The Yemenis procured the coffee beans from the Ethiopian Highlands.
