noun.
The quantity or weight of metal undergoing a metallurgical process. See heat. 4.
noun.
In electricity, that portion of the heat developed in an electric circuit which cannot be converted directly into electrie energy. The total heat in an electric circuit is HJ= IRt + PIt, where H is the heat in calories, J is the mechanical equivalent, I the current, R the resistance, t the time during which the current flows, and P is the difference of potential due to the heating of any metal junctions that may exist in the circuit. The term IRt represents the irreversible heat. Also called ohmic heat. Compare reversible heat.
noun.
The heat in calories required to convert a gram of liquid at its melting-point into saturated vapor at a given pressure.
To cause to grow warm; communicate heat to; make hot: as, to heat an oven or a furnace; to heat iron. See heat, n., 2.
To make feverish; stimulate; excite: as, to heat the blood.
To warm with emotion, passion, or desire; rouse into action; animate; encourage.
To run a heat over, as in a race.
To grow warm or hot; come to a heated condition, from the effect either of something external or of chemical action, as in fermentation or decomposition.
noun.
A sensation of the kind produced by close proximity to fire.
noun.
That condition of a material body which is capable of producing the sensation of heat; in physics, the corresponding specific form of energy, consisting in an agitation of the molecules of matter, and measured by the total kinetic energy of such agitation. See energy, 7.
noun.
In ordinary use, a sensibly high temperature, as the warmth of the sun, or of the body.
noun.
A heating, as of a piece of iron to be wrought by a blacksmith, or of a mass of metal to be melted in a furnace; an exposure to intense heat.
noun.
Hence Violent action; high activity; intense and uninterrupted effort: as, to do a thing at a heat.
noun.
Especially— A single course in a horse-race or other contest.
noun.
A division of a race or contest when the contestants are too numerous to run at once, the race being finally decided by the winners (or winners and seconds) of each division running a final race or heat.
noun.
Indication of high temperature, as the condition or color of the body or part of the body; redness; high color.; flush.
noun.
Vehemence; rage; violence; excitement; animation; fervency; ardor; zeal: as, the heat of battle or of argument; the heat of passion or of eloquence.