photochemistry
(noun) branch of chemistry that deals with the chemical action of light
Source: WordNet® 3.1
photochemistry (usually uncountable, plural photochemistries)
(chemistry) The study of photochemical reactions.
Source: Wiktionary
Pho`to*chem"is*try, n. Etym: [Photo- + chemistry.] (Chem.)
Definition: The branch of chemistry which relates to the effect of light in producing chemical changes, as in photography.
Source: Webster’s Unabridged Dictionary 1913 Edition
2 April 2025
(adjective) secret or hidden; not openly practiced or engaged in or shown or avowed; “covert actions by the CIA”; “covert funding for the rebels”
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.
