downcomer (plural downcomers)
A pipe to conduct something downwards.
A large external pipe in a water-tube boiler, carrying unheated water from the steam drum down to the water drum as part of the circulation path.
A pipe for leading the hot gases from the top of a blast furnace downward to the regenerators, boilers, etc.
Source: Wiktionary
Down"com`er, n. A pipe to conduct something downwards; specif.: (a) (Iron Manuf.) A pipe for leading the hot gases from the top of a blast furnace downward to the regenerators, boilers, etc. (b) (Steam Engin.) In some water-tube boilers, a tube larger in diameter than the water tubes to conduct the water from each top drum to a bottom drum, thus completing the circulation.
Source: Webster’s Unabridged Dictionary 1913 Edition
29 December 2024
(adjective) being long-lasting and recurrent or characterized by long suffering; “chronic indigestion”; “a chronic shortage of funds”; “a chronic invalid”
Contrary to popular belief, coffee beans are not technically beans. They are referred to as such because of their resemblance to legumes. A coffee bean is a seed of the Coffea plant and the source for coffee. It is the pit inside the red or purple fruit, often referred to as a cherry. Just like ordinary cherries, the coffee fruit is also a so-called stone fruit.
