Boilary to Bolster
Boilary (Boil"a*ry) n. See Boilery.
Boiled (Boiled) a. Dressed or cooked by boiling; subjected to the action of a boiling liquid; as, boiled
meat; a boiled dinner; boiled clothes.
Boiler (Boil"er) n.
1. One who boils.
2. A vessel in which any thing is boiled.
The word boiler is a generic term covering a great variety of kettles, saucepans, clothes boilers, evaporators,
coppers, retorts, etc.
3. (Mech.) A strong metallic vessel, usually of wrought iron plates riveted together, or a composite
structure variously formed, in which steam is generated for driving engines, or for heating, cooking, or
other purposes.
The earliest steam boilers were usually spheres or sections of spheres, heated wholly from the outside.
Watt used the wagon boiler (shaped like the top of a covered wagon) which is still used with low pressures.
Most of the boilers in present use may be classified as plain cylinder boilers, flue boilers, sectional
and tubular boilers.
Barrel of a boiler, the cylindrical part containing the flues. Boiler plate, Boiler iron, plate or
rolled iron of about a quarter to a half inch in thickness, used for making boilers and tanks, for covering
ships, etc. Cylinder boiler, one which consists of a single iron cylinder. Flue boilers are usually
single shells containing a small number of large flues, through which the heat either passes from the
fire or returns to the chimney, and sometimes containing a fire box inclosed by water. Locomotive
boiler, a boiler which contains an inclosed fire box and a large number of small flues leading to the
chimney. Multiflue boiler. Same as Tubular boiler, below. Sectional boiler, a boiler composed
of a number of sections, which are usually of small capacity and similar to, and connected with, each
other. By multiplication of the sections a boiler of any desired capacity can be built up. Tubular
boiler, a boiler containing tubes which form flues, and are surrounded by the water contained in the
boiler. See Illust. of Steam boiler, under Steam. Tubulous boiler. See under Tubulous. See
Tube, n., 6, and 1st Flue.
Boilery (Boil"er*y) n. [Cf. F. bouillerie.] A place and apparatus for boiling, as for evaporating brine in
salt making.
Boiling (Boil"ing), a. Heated to the point of bubbling; heaving with bubbles; in tumultuous agitation, as
boiling liquid; surging; seething; swelling with heat, ardor, or passion.
Boiling point, the temperature at which a fluid is converted into vapor, with the phenomena of ebullition.
This is different for different liquids, and for the same liquid under different pressures. For water, at the
level of the sea, barometer 30 in., it is 212 ° Fahrenheit; for alcohol, 172.96°; for ether, 94.8°; for mercury,
about 675°. The boiling point of water is lowered one degree Fahrenheit for about 550 feet of ascent
above the level of the sea. Boiling spring, a spring which gives out very hot water, or water and
steam, often ejecting it with much force; a geyser. To be at the boiling point, to be very angry.
To keep the pot boiling, to keep going on actively, as in certain games. [Colloq.]
Boiling (Boil"ing), n.
1. The act of ebullition or of tumultuous agitation.
2. Exposure to the action of a hot liquid.
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