boiler (boiler)

1. A person who boils.-2. A ve el in which anything is boiled. Specifically-(a) A large pan or ve el of iron, copper, or bra , quantities of liquor at once. (b) A large ve el of metal used in distilleries, potash-works, etc., for boiling large in which soiled clothes are boiled to cleanse them; a wash-boiler. 3. A strong metallic structure in which steam is generated for driving engines or for other purposes. See steam - boiler.-4. Something, as a vegetable, that is suitable for boiling. [Rare.] n. A device boiler-alarm (boi'ler-a-lärm"), for showing when the water in a steam-boiler is too low for safety. boiler-clamp (boi'ler-klamp), n. A clamp used for holding the plates and parts of boilers together, so that they can be drilled or riveted. boiler-feeder (boiʻlèr-fē"dèr), n. An apparatus for supplying water to a steam-boiler. boiler-float (boi'ler-flot), n. A float connected with the water-feeding mechanism of a steam boiler. It opens a supply-valve when the water falls to a certain point, and closes the valve when the water has attained the proper height. boiler-iron (boi'ler-i"èrn), n. Iron rolled into the form of a flat plate, from to inch in thickne , used for making boilers, tanks, ves sels, etc. Also boiler - plate. boiler-meter (boi'ler-meter), n. A meter for measuring the quantity of water used in a steam-boiler.