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From The Collaborative International Dictionary of English v.0.44 [gcide]:
Heat \Heat\ (h[=e]t), noun [OE. hete, h[ae]te, AS. h[=ae]tu, h[=ae]to, fr. h[=a]t hot; akin to OHG. heizi heat, Dan. hede, Sw. hetta. See {Hot}.]
1. A force in nature which is recognized in various effects, but especially in the phenomena of fusion and evaporation, and which, as manifested in fire, the sun's rays, mechanical action, chemical combination, etc., becomes directly known to us through the sense of feeling. In its nature heat is a mode of motion, being in general a form of molecular disturbance or vibration. It was formerly supposed to be a subtile, imponderable fluid, to which was given the name {caloric}.
Note: As affecting the human body, heat produces different sensations, which are called by different names, as heat or sensible heat, warmth, cold, etc., according to its degree or amount relatively to the normal temperature of the body.
2. The sensation caused by the force or influence of heat when excessive, or above that which is normal to the human body; the bodily feeling experienced on exposure to fire, the sun's rays, etc.; the reverse of {cold}.
3. High temperature, as distinguished from low temperature, or cold; as, the heat of summer and the cold of winter; heat of the skin or body in fever, etc.
Else how had the world . . . Avoided pinching cold and scorching heat! --Milton.
4. Indication of high temperature; appearance, condition, or color of a body, as indicating its temperature; redness; high color; flush; degree of temperature to which something is heated, as indicated by appearance, condition, or otherwise.
It has raised . . . heats in their faces. --Addison.
The heats smiths take of their iron are a blood-red heat, a white-flame heat, and a sparkling or welding heat. --Moxon.
5. A single complete operation of heating, as at a forge or in a furnace; as, to make a horseshoe in a certain number of heats.
6. A violent action unintermitted; a single effort; a single course in a race that consists of two or more courses; as, he won two heats out of three.
Many causes . . . for refreshment betwixt the heats. --Dryden.
[He] struck off at one heat the matchless tale of ''Tam o' Shanter.'' --J. C. Shairp.
7. Utmost violence; rage; vehemence; as, the heat of battle or party. ''The heat of their division.'' --Shak.
8. Agitation of mind; inflammation or excitement; exasperation. ''The heat and hurry of his rage.'' --South.
9. Animation, as in discourse; ardor; fervency; as, in the heat of argument.
With all the strength and heat of eloquence. --Addison.
10. (Zo["o]l.) Sexual excitement in animals; readiness for sexual activity; estrus or rut. [1913 Webster +PJC]
11. Fermentation.
12. Strong psychological pressure, as in a police investigation; as, when they turned up the heat, he took it on the lam. [slang] [PJC]
{Animal heat}, {Blood heat}, {Capacity for heat}, etc. See under {Animal}, {Blood}, etc.
{Atomic heat} (Chem.), the product obtained by multiplying the atomic weight of any element by its specific heat. The atomic heat of all solid elements is nearly a constant, the mean value being 6.4.
{Dynamical theory of heat}, that theory of heat which assumes it to be, not a peculiar kind of matter, but a peculiar motion of the ultimate particles of matter.
{Heat engine}, any apparatus by which a heated substance, as a heated fluid, is made to perform work by giving motion to mechanism, as a hot-air engine, or a steam engine.
{Heat producers}. (Physiol.) See under {Food}.
{Heat rays}, a term formerly applied to the rays near the red end of the spectrum, whether within or beyond the visible spectrum.
{Heat weight} (Mech.), the product of any quantity of heat by the mechanical equivalent of heat divided by the absolute temperature; -- called also {thermodynamic function}, and {entropy}.
{Mechanical equivalent of heat}. See under {Equivalent}.
{Specific heat of a substance (at any temperature)}, the number of units of heat required to raise the temperature of a unit mass of the substance at that temperature one degree.
{Unit of heat}, the quantity of heat required to raise, by one degree, the temperature of a unit mass of water, initially at a certain standard temperature. The temperature usually employed is that of 0[deg] Centigrade, or 32[deg] Fahrenheit.
From The Collaborative International Dictionary of English v.0.44 [gcide]:
Heat \Heat\ (h[=e]t), verb (used with an object) [imp. & p. p. {Heated}; p. pr. & vb. n. {Heating}.] [OE. heten, AS. h[=ae]tan, fr. h[=a]t hot. See {Hot}.]
1. To make hot; to communicate heat to, or cause to grow warm; as, to heat an oven or furnace, an iron, or the like.
Heat me these irons hot. --Shak.
2. To excite or make hot by action or emotion; to make feverish.
Pray, walk softly; do not heat your blood. --Shak.
3. To excite ardor in; to rouse to action; to excite to excess; to inflame, as the passions.
A noble emulation heats your breast. --Dryden.
From The Collaborative International Dictionary of English v.0.44 [gcide]:
Heat \Heat\, verb (used without an object)
1. To grow warm or hot by the action of fire or friction, etc., or the communication of heat; as, the iron or the water heats slowly.
2. To grow warm or hot by fermentation, or the development of heat by chemical action; as, green hay heats in a mow, and manure in the dunghill.
From The Collaborative International Dictionary of English v.0.44 [gcide]:
Heat \Heat\ (h[e^]t), imp. & p. p. of {Heat}. Heated; as, the iron though heat red-hot. [Obs. or Archaic] --Shak.
From WordNet (r) 2.0 [wn]:
heat
noun
1: a form of energy that is transferred by a difference in temperature [syn: {heat energy}]
2: the presence of heat [syn: {hotness}, {high temperature}] [ant: {coldness}]
3: the sensation caused by heat energy [syn: {warmth}]
4: intense passion or emotion [syn: {warmth}, {passion}]
5: applies to nonhuman mammals: a state or period of heightened sexual arousal and activity [syn: {estrus}, {oestrus}, {rut}] [ant: {anestrus}]
6: a preliminary race in which the winner advances to a more important race
7: utility to warm a building; "the heating system wasn't working"; "they have radiant heating" [syn: {heating system}, {heating plant}, {heating}]
verb
1: make hot or hotter; "heat the soup" [syn: {heat up}] [ant: {cool}]
2: provide with heat; "heat the house"
3: arouse or excite feelings and passions; "The ostentatious way of living of the rich ignites the hatred of the poor"; "The refugees' fate stirred up compassion around the world"; "Wake old feelings of hatred" [syn: {inflame}, {stir up}, {wake}, {ignite}, {fire up}]
4: gain heat or get hot; "The room heated up quickly" [syn: {hot up}, {heat up}] [ant: {cool}]
From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:
282 Moby Thesaurus words for "heat": John Law, Le Mans, a transient madness, abandon, activate, agitate, agitation, air race, anger, angriness, animate, annoy, ardency, ardor, arousal, arouse, automobile race, awake, awaken, bake, barbecue, baste, bicycle race, blanch, blow the coals, blow up, boat race, boil, braise, brew, broil, brown, calenture, call forth, call up, chafe, childbed fever, coddle, commitment, committedness, contest of speed, continued fever, cook, cop, copper, cross-country race, curry, dash, dedication, delirium, derby, devil, devotedness, devotion, devoutness, do, do to perfection, dog race, drag race, eagerness, earnestness, ecstasy, electric-heat, endurance race, enkindle, enrage, enragement, enthusiasm, eruptive fever, estral cycle, estruation, estrum, estrus, excite, excitement, exhilaration, faith, faithfulness, fan, fan the fire, fan the flame, febricity, febrility, feed the fire, ferment, fervency, fervidness, fervor, fever, fever heat, fever of excitement, feverishness, fidelity, fieriness, fire, fire up, flame, flatfoot, flush, foment, footrace, frenzy, fricassee, frizz, frizzle, fry, furor, fury, fury of lust, fuzz, gas-heat, grapes of wrath, griddle, grill, gusto, heart, heartiness, heat up, heatedness, hectic, hectic fever, hectic flush, hot, hot up, hot-air-heat, hot-water-heat, hotness, hurdle race, hyperpyrexia, hyperthermia, ignite, impassion, impassionedness, impetuosity, incense, incite, inflame, infuriate, infuriation, inspirit, instigate, intensify, intensity, intentness, intermittent fever, irateness, ire, key up, kindle, lap, lather up, light the fuse, light up, liveliness, loyalty, mad, madden, man, marathon, marathon race, match race, motorcycle race, move, mull, nettle, obstacle race, oven-bake, overexcite, overheat, paddy, pan, pan-broil, parboil, passion, passionateness, peace officer, pique, poach, police, potato race, preheat, prepare, prepare food, protein fever, provoke, puerperal fever, put up to, pyrexia, quicken, race, rally, recook, regatta, reheat, relapsing fever, relay, relay race, relish, remittent, remittent fever, resolution, road race, roast, rouse, run, rut, sack race, saeva indignatio, saute, savor, scallop, sear, seriousness, set astir, set fire to, set on, set on fire, sexual excitement, shirr, sic on, simmer, sincerity, soreness, soul, speedway race, spirit, sprint, sprint race, steam, steam up, stew, stimulate, stimulation, stir, stir the blood, stir the embers, stir the feelings, stir up, stir-fry, stock-car race, stoke up, stress, summon up, superheat, tenseness, tension, tepefy, three-legged race, tickle, toast, torch race, torridity, torridness, track race, turn on, urethral fever, vaccinal fever, vehemence, verve, vials of wrath, wake, wake up, waken, walk, warm, warm over, warm the blood, warm up, warmness, warmth, warmth of feeling, water fever, whet, whip up, work into, work up, wound fever, wrath, wrathfulness, yacht race, zeal, zealousness
From THE DEVIL'S DICTIONARY ((C)1911 Released April 15 1993) [devils]:
HEAT, noun
Heat, says Professor Tyndall, is a mode Of motion, but I know now how he's proving His point; but this I know -- hot words bestowed With skill will set the human fist a-moving, And where it stops the stars burn free and wild. _Crede expertum_ -- I have seen them, child. Gorton Swope
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