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Noun The sun's heat melted the snow. the intense heat of a fire She applied heat to the sore muscles in her leg. a period of high heat and humidity The crops were damaged by drought and extreme heat .
Heat Definition. Heat is the thermal energy transfer between systems or bodies due to a temperature difference. Thermal energy, in turn, is the kinetic energy of vibrating and colliding particles. Heat occurs spontaneously from a hotter body to a colder one.
heat, energy that is transferred from one body to another as the result of a difference in temperature. If two bodies at different temperatures are brought together, energy is transferred—i.e., heat flows—from the hotter body to the colder.
James Clerk Maxwell in his 1871 Theory of Heat outlines four stipulations for the definition of heat: It is something which may be transferred from one body to another, according to the second law of thermodynamics. It is a measurable quantity, and so can be treated mathematically.
noun. a relatively high degree of warmth. Antonyms: coolness. the condition or quality of being hot: The heat of the oven will caramelize the natural sugars in the vegetables, enhancing their flavor. Synonyms: hotness, warmth. the degree of hotness; temperature: Heat is measured with a thermometer.
HEAT meaning: 1. the quality of being hot or warm, or the temperature of something: 2. the system that keeps a…. Learn more.
Definition of heat noun from the Oxford Advanced Learner's Dictionary. heat. noun. /hiːt/ Idioms. being hot/temperature. [uncountable, singular] the quality of being hot. Heat rises. He could feel the heat of the sun on his back. Computers generate heat of their own. The fire gave out a fierce heat. see also white heat. Extra Examples.
the quality of being hot or warm: the heat of summer. More examples. the burning heat of the midday sun. Insulating the walls will help to conserve heat. This special camera can detect bodies by their heat. When you rub your hands together the friction produces heat. The heat gradually dissipates into the atmosphere. Want to learn more?
The verb heat means to make something hot, like when you heat up last night's pizza to eat for lunch today. When things heat up, they become exciting or intense, the way thrilling chase scenes heat up your favorite action movie.
Heat Definition. A form of energy associated with the motion of atoms or molecules and capable of being transmitted through solid and fluid media by conduction, through fluid media by convection, and through empty space by radiation.