Thermal vs. Heat

Thermalnoun

(meteorology) A column of rising air in the lower atmosphere created by uneven heating of Earth's surface.

Heatnoun

(uncountable) Thermal energy.

‘This furnace puts out 5000 BTUs of heat.’; ‘That engine is really throwing off some heat.’; ‘Removal of heat from the liquid caused it to turn into a solid.’;

Thermaladjective

Pertaining to heat or temperature.

Heatnoun

(uncountable) The condition or quality of being hot.

‘Stay out of the heat of the sun!’;

Thermaladjective

(fabric) Providing efficient insulation so as to keep the body warm.

Heatnoun

(uncountable) An attribute of a spice that causes a burning sensation in the mouth.

‘The chili sauce gave the dish heat.’;

Thermaladjective

Caused, brought about by heat.

Heatnoun

(uncountable) A period of intensity, particularly of emotion.

‘It's easy to make bad decisions in the heat of the moment.’;

Thermaladjective

(stone) Having a rough finish by treatment with a blow-torch.

Heatnoun

(uncountable) An undesirable amount of attention.

‘The heat from her family after her DUI arrest was unbearable.’;

Thermalverb

(stone) To create a rough finish on stone by treating it with a high-temperature blow-torch.

Heatnoun

The police.

‘The heat! Scram!’;

Thermalverb

To fly an unpowered aircraft in a (thermal) column of rising air.

Heatnoun

One or more firearms.

Thermaladjective

Of or pertaining to heat; warm; hot; as, the thermal unit; thermal waters.

‘The thermal condition of the earth.’;

Heatnoun

A fastball.

‘The catcher called for the heat, high and tight.’;

Thermaladjective

caused by or affected by heat; as, thermal springs.

Heatnoun

(uncountable) A condition where a mammal is aroused sexually or where it is especially fertile and therefore eager to mate.

‘The male canines were attracted by the female in heat.’;

Thermaladjective

designed to retain heat; as, thermal underwear.

Heatnoun

(countable) A preliminary race, used to determine the participants in a final race

‘The runner had high hopes, but was out of contention after the first heat.’;

Thermalnoun

rising current of warm air

Heatnoun

(countable) One cycle of bringing metal to maximum temperature and working it until it is too cool to work further.

‘I can make a scroll like that in a single heat.’;

Thermaladjective

relating to or associated with heat;

‘thermal movements of molecules’; ‘thermal capacity’; ‘thermic energy’; ‘the caloric effect of sunlight’;

Heatnoun

(countable) A hot spell.

‘The children stayed indoors during this year's summer heat.’;

Thermaladjective

of or relating to hot a hot spring;

‘thermal water’;

Heatnoun

(uncountable) Heating system; a system that raises the temperature of a room or building.

‘I'm freezing; could you turn on the heat?’;

Thermaladjective

caused by or designed to retain heat;

‘a thermal burn’; ‘thermal underwear’;

Heatnoun

(uncountable) The output of a heating system.

‘During the power outage we had no heat because the controls are electric.’; ‘Older folks like more heat than the young.’;

Thermal

A thermal column (or thermal) is a column of rising air in the lower altitudes of Earth's atmosphere, a form of atmospheric updraft. Thermals are created by the uneven heating of Earth's surface from solar radiation, and are an example of convection, specifically atmospheric convection.

Heatnoun

In omegaverse fan fiction, a cyclical period in which alphas and omegas experience an intense, sometimes irresistible biological urge to mate.

Heatverb

(transitive) To cause an increase in temperature of (an object or space); to cause to become hot often with "up".

‘I'll heat up the water.’;

Heatverb

(intransitive) To become hotter.

‘There's a pot of soup heating on the stove.’;

Heatverb

To excite or make hot by action or emotion; to make feverish.

Heatverb

To excite ardour in; to rouse to action; to excite to excess; to inflame, as the passions.

Heatverb

To arouse, to excite (sexually).

‘The massage heated her up.’;

Heatnoun

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.

Heatnoun

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.

Heatnoun

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!’;

Heatnoun

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.’; ‘The heats smiths take of their iron are a blood-red heat, a white-flame heat, and a sparkling or welding heat.’;

Heatnoun

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.

Heatnoun

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.’; ‘[He] struck off at one heat the matchless tale of "Tam o' Shanter."’;

Heatnoun

Utmost violence; rage; vehemence; as, the heat of battle or party.

Heatnoun

Agitation of mind; inflammation or excitement; exasperation.

Heatnoun

Animation, as in discourse; ardor; fervency; as, in the heat of argument.

‘With all the strength and heat of eloquence.’;

Heatnoun

Sexual excitement in animals; readiness for sexual activity; estrus or rut.

Heatnoun

Fermentation.

Heatnoun

Strong psychological pressure, as in a police investigation; as, when they turned up the heat, he took it on the lam.

Heatverb

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.’;

Heatverb

To excite or make hot by action or emotion; to make feverish.

‘Pray, walk softly; do not heat your blood.’;

Heatverb

To excite ardor in; to rouse to action; to excite to excess; to inflame, as the passions.

‘A noble emulation heats your breast.’;

Heatverb

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.

Heatverb

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.

Heat

Heated; as, the iron though heat red-hot.

Heatnoun

a form of energy that is transferred by a difference in temperature

Heatnoun

the presence of heat

Heatnoun

the sensation caused by heat energy

Heatnoun

intense passion or emotion

Heatnoun

applies to nonhuman mammals: a state or period of heightened sexual arousal and activity

Heatnoun

a preliminary race in which the winner advances to a more important race

Heatnoun

utility to warm a building;

‘the heating system wasn't working’; ‘they have radiant heating’;

Heatverb

make hot or hotter;

‘heat the soup’;

Heatverb

provide with heat;

‘heat the house’;

Heatverb

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’;

Heatverb

gain heat or get hot;

‘The room heated up quickly’;

Heat

In thermodynamics, heat is energy in transfer to or from a thermodynamic system, by mechanisms other than thermodynamic work or transfer of matter. The various mechanisms of energy transfer that define heat are stated in the next section of this article.