phenanthrene (countable and uncountable, plural phenanthrenes)
(organic compound) A tricyclic aromatic hydrocarbon obtained from coal tar; used in the manufacture of dyes, pharmaceuticals and explosives; it is isomeric with anthracene.
Source: Wiktionary
Phe*nan"threne, n. Etym: [Phenyl + antracene.] (Chem.)
Definition: A complex hydrocarbon, C14H10, found in coal tar, and obtained as a white crystalline substance with a bluish fluorescence.
Source: Webster’s Unabridged Dictionary 1913 Edition
8 October 2024
(noun) poisonous drug derived from an Eurasian plant of the genus Conium; “Socrates refused to flee and died by drinking hemlock”
The first coffee-house in Mecca dates back to the 1510s. The beverage was in Turkey by the 1530s. It appeared in Europe circa 1515-1519 and was introduced to England by 1650. By 1675 the country had more than 3,000 coffee houses, and coffee had replaced beer as a breakfast drink.