heterocyclic
(adjective) containing a closed ring of atoms of which at least one is not a carbon atom
Source: WordNet® 3.1
heterocyclic (not comparable)
(chemistry, of a cyclic compound) Having atoms of two or more different elements in at least one of its rings.
(organic chemistry, of a cyclic compound) Having one or more atoms other than carbon in at least one of its rings.
• heterocyclical
• carboheterocyclic (organic chemistry)
heterocyclic (plural heterocyclics)
(organic chemistry) A heterocycle
Source: Wiktionary
17 May 2025
(noun) sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed
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.
