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

the presence of heat

the sensation caused by heat energy

the trait of being intensely emotional

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

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

utility to warm a building

make hot or hotter

provide with heat

arouse or excite feelings and passions

gain heat or get hot

a limit to high speed flight imposed by aerodynamic heating

(thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure

dissipation of heat

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

any engine that makes use of heat to do work

device that transfers heat from one liquid to another without allowing them to mix

a condition marked by dizziness and nausea and weakness caused by depletion of body fluids and electrolytes

a flash of intense heat (as released by an atomic explosion)

collapse caused by exposure to excessive heat

electric heater consisting of a high-power incandescent lamp that emits infrared radiation

bright flashes of light near the horizon without thunder (especially on hot evenings); usually attributed to distant lightning that is reflected by clouds

heat liberated by a unit mass of gas at its boiling point as it condenses into a liquid

the heat required for a fluid substance to break up into simpler constituents

the heat evolved or absorbed during the formation of one mole of a substance from its component elements

heat absorbed by a unit mass of a solid at its melting point in order to convert the solid into a liquid at the same temperature

heat liberated by a unit mass of liquid at its freezing point when it solidifies

the heat evolved or absorbed when one mole of a substance is dissolved in a large volume of a solvent

heat absorbed by a unit mass of material when it changes from a solid to a gaseous state

heat absorbed or radiated during a change of phase at a constant temperature and pressure

heat absorbed by a unit mass of a material at its boiling point in order to convert the material into a gas at the same temperature

heat absorbed by a unit mass of a material at its boiling point in order to convert the material into a gas at the same temperature

a condition marked by dizziness and nausea and weakness caused by depletion of body fluids and electrolytes

apparatus that extracts heat from a liquid that is at a higher temperature than its surroundings; can be used to transfer heat from a reservoir outside in order to heat a building

obstruction of the sweat ducts during high heat and humidity

a ray that produces a thermal effect

a protective covering that protects a spacecraft from overheating on reentry

a metal conductor specially designed to conduct (and radiate) heat

a unit of measurement for work

gain heat or get hot

make hot or hotter

make more intense

a wave of unusually hot weather

(of a chemical reaction or compound) occurring or formed with absorption of heat

(of a chemical reaction or compound) occurring or formed with the liberation of heat

a missile with a guidance system that directs it toward targets emitting infrared radiation (as the emissions of a jet engine)

capable of becoming hot

made warm or hot (`het' is a dialectal variant of `heated')

marked by emotional heat; vehement

made warm or hot (`het' is a dialectal variant of `heated')