DOWNCOMER

Etymology

Noun

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



RESET




Word of the Day

4 March 2025

HYDRAULIC

(adjective) moved or operated or effected by liquid (water or oil); “hydraulic erosion”; “hydraulic brakes”


coffee icon

Coffee Trivia

In 1884, Angelo Moriondo of Turin, Italy, demonstrated the first working example of an espresso machine.

coffee icon