temperature

American  

[tem-per-uh-cher, -choor, -pruh-, -per-cher] / ˈtɛm pər ə tʃər, -ˌtʃʊər, -prə-, -pər tʃər /

noun

• temperatures
  plural

1. a measure of the warmth or coldness of an object or substance with reference to some standard value. The temperature of two systems is the same when the systems are in thermal equilibrium. T

2. Physiology, Pathology.

   1. the degree of heat in a living body, normally about 98.6°F (37°C) in humans.

   2. the excess of this above the normal.

3. Obsolete. mildness, as of the weather.

4. Obsolete. temperament.

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temperature British  

/ ˈtɛmprɪtʃə /

noun

1. the degree of hotness of a body, substance, or medium; a physical property related to the average kinetic energy of the atoms or molecules of a substance

2. a measure of this degree of hotness, indicated on a scale that has one or more fixed reference points

3. informal a body temperature in excess of the normal

4. archaic

   1. compromise

   2. temperament

   3. temperance

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temperature Scientific  

/ tĕm′pər-ə-chr′ /

1. A measure of the ability of a substance, or more generally of any physical system, to transfer heat energy to another physical system. The temperature of a substance is closely related to the average kinetic energy of its molecules.

2. See also Boyle's law

3. Any of various standardized numerical measures of this ability, such as the Kelvin, Fahrenheit, and Celsius scales.

4. An abnormally high body temperature; a fever.

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temperature Idioms  

1. see run a fever (temperature).

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Usage

Heat and temperature are closely related but distinct and sometimes subtle ideas. Heat is simply transferred thermal energy—most commonly, the kinetic energy of molecules making up substance, vibrating and bouncing against each other. A substance's temperature, on the other hand, is a measure of its ability to transfer heat, rather than the amount of heat transferred. For example, a match lit under a pot of boiling water reaches a much higher temperature than the water, but it is able to give off much less heat, since only a small amount of thermal energy is created and released by it. When any two substances of different temperatures are in thermal contact, the laws of thermodynamics state that heat flows from the higher-temperature substance into the lower-temperature substance, raising the temperature of the heated body and lowering the temperature of the body releasing heat until thermal equilibrium is reached, and the temperatures are the same. Thus temperature describes a characteristic of matter that determines the direction and extent of heat transfer, so the match with little heat but high temperature still adds energy to the water when placed under the pot. Providing a closed physical system with heat generally raises its temperature but not necessarily; for example, ice at zero degrees Celsius requires considerable additional heat in order to melt into water at zero degrees Celsius. Temperature can be related to the average kinetic energy of the molecules of gases, though this relation breaks down in most real cases involving liquids, solids, substances with larger molecules, and radiation with no mass, such as light. The two most common temperature scales, Celsius (C) and Fahrenheit (F), are based on the freezing and boiling points of water. On the Celsius scale there are 100 increments between the two points, and on the Fahrenheit scale there are 180. Scientists also use the International System units called Kelvins (K). A difference in temperature of one degree is equivalent in the Celsius and Kelvin scales, but their absolute scales are different: while zero degrees C is the temperature at which water freezes (at a pressure of one atmosphere), zero degrees K (−273.72 degrees C), also called absolute zero, is the least possible temperature for a system, representing a theoretical state from which no heat can be extracted.

Other Word Forms

Noun Inflected Forms

• temperatures
  plural

Etymology

Origin of temperature

First recorded in 1525–35, temperature is from the Latin word temperātūra a tempering. See temperate, -ure

Explanation

Temperature refers to how hot or cold something is. When you think you might have a fever, you take your temperature to see if it is higher than normal. Temperature can also mean hotness and coldness in terms of excitement. Before offering a discount on its new one-legged jeans, the clothing manufacturer surveyed 200 loyal customers over the phone, to gauge the likely temperature of the response to their marketing ploy.

Example Sentences

See Examples For:

temperature temperatures

New findings from researchers at Utrecht University suggest that temperature alone does not determine the fate of this major ocean circulation system.

From Science Daily ● Aug. 14, 2026

Metro is alone in choosing the high temperature as its main focus for the front page.

From BBC ● Aug. 14, 2026

It now rivals the icy temperature of his marriage.

From The Wall Street Journal ● Aug. 14, 2026

Factors included people staying indoors due to the temperature outside, holiday travel and gatherings.

From Los Angeles Times ● Aug. 14, 2026

The farther back they walked, the colder the temperature became.

From "Healer of the Water Monster" by Brian Young

Under these approaches, global temperatures would temporarily rise beyond a target limit, with the expectation that future technologies could later reduce temperatures again.

From Science Daily ● Aug. 14, 2026

Fresher air will then have spread to all parts of the UK with temperatures around average for the time of year by Sunday - around 17 to 26C.

From BBC ● Aug. 14, 2026

The Colosseum has extended opening hours at night this summer to allow more visitors to see the famous Roman amphitheatre in cooler temperatures after sunset.

From Barron's ● Aug. 14, 2026

When temperatures rise more rapidly, those adjustments cannot happen quickly enough, leaving the circulation more vulnerable to instability.

From Science Daily ● Aug. 14, 2026

The temperatures inched just above freezing according to a thermometer outside the kolkhoz office.

From "Between Shades of Gray" by Ruta Sepetys

Related Words

• climate
• cold
• condition
• heat
• warmth