kelvin

1 of 2

noun

kel·vin ˈkel-vən How to pronounce kelvin (audio)

plural kelvins

: the base unit of temperature in the International System of Units that is defined by setting the fixed numerical value of the Boltzmann constant to be 1.380649 x 10^–23 joules per kelvin and that is equal to 1/273.16 of the Kelvin scale temperature of the triple point of water

—abbreviation K

Example Sentences

Adjective a temperature of 200 degrees Kelvin

Recent Examples on the Web

Noun

The second challenge was to ensure the detectors worked properly by achieving a temperature of 7 kelvin (266º C below freezing).

Dhananjay Khadilkar, Ars Technica, 10 Aug. 2022 Lightforce takes special care to ensure its driving lights operate at 5,000 kelvin, which should be considered an ideal color temperature.

Wes Siler, Outside Online, 18 Aug. 2020 The color temperature of daylight varies with conditions but is commonly understood to range from 5,000 to 6,500 kelvin.

Wes Siler, Outside Online, 18 Aug. 2020 About 130 metric tons of liquid helium—about the weight of a midsize blue whale—keep 36,000 metric tons of the collider under 4 kelvin.

Daniel Garisto, Scientific American, 27 Apr. 2022 Aspelmeyer’s group says that the spread in their particle’s position is only 1.3 times that of the zero-point motion, equivalent to a temperature of just a few millionths of a kelvin above absolute zero.

Quanta Magazine, 18 Aug. 2021 Inside the sun, where nuclear fusion occurs, temperatures can swell to 15 million kelvin.

Jennifer Leman, Popular Mechanics, 25 Sep. 2020 At night, the surface of even the closest planet to the sun, Mercury, drops to about 95 kelvin.

Jennifer Leman, Popular Mechanics, 25 Sep. 2020 Pluto’s surface temperature reaches about 40 kelvin.

Jennifer Leman, Popular Mechanics, 25 Sep. 2020 See More

Word History

Etymology

Adjective

William Thomson, Lord Kelvin

First Known Use

Noun

1968, in the meaning defined above

Adjective

1908, in the meaning defined above

单词	kelvin
释义	kelvin 1 of 2 noun kel·vin ˈkel-vən plural kelvins : the base unit of temperature in the International System of Units that is defined by setting the fixed numerical value of the Boltzmann constant to be 1.380649 x 10^–23 joules per kelvin and that is equal to 1/273.16 of the Kelvin scale temperature of the triple point of water —abbreviation K Kelvin 2 of 2 adjective : relating to, conforming to, or having a thermometric scale on which the unit of measurement equals the Celsius degree and according to which absolute zero is 0 K, the equivalent of −273.15°C Example Sentences Adjective a temperature of 200 degrees Kelvin Recent Examples on the Web Noun The second challenge was to ensure the detectors worked properly by achieving a temperature of 7 kelvin (266º C below freezing). Dhananjay Khadilkar, Ars Technica, 10 Aug. 2022 Lightforce takes special care to ensure its driving lights operate at 5,000 kelvin, which should be considered an ideal color temperature. Wes Siler, Outside Online, 18 Aug. 2020 The color temperature of daylight varies with conditions but is commonly understood to range from 5,000 to 6,500 kelvin. Wes Siler, Outside Online, 18 Aug. 2020 About 130 metric tons of liquid helium—about the weight of a midsize blue whale—keep 36,000 metric tons of the collider under 4 kelvin. Daniel Garisto, Scientific American, 27 Apr. 2022 Aspelmeyer’s group says that the spread in their particle’s position is only 1.3 times that of the zero-point motion, equivalent to a temperature of just a few millionths of a kelvin above absolute zero. Quanta Magazine, 18 Aug. 2021 Inside the sun, where nuclear fusion occurs, temperatures can swell to 15 million kelvin. Jennifer Leman, Popular Mechanics, 25 Sep. 2020 At night, the surface of even the closest planet to the sun, Mercury, drops to about 95 kelvin. Jennifer Leman, Popular Mechanics, 25 Sep. 2020 Pluto’s surface temperature reaches about 40 kelvin. Jennifer Leman, Popular Mechanics, 25 Sep. 2020 See More Word History Etymology Adjective William Thomson, Lord Kelvin First Known Use Noun 1968, in the meaning defined above Adjective 1908, in the meaning defined above Medical Definition kelvin 1 of 2 noun kel·vin ˈkel-vən : the base unit of temperature in the International System of Units that is equal to 1/273.16 of the Kelvin scale temperature of the triple point of water and also to the Celsius degree Kelvin 2 of 2 adjective : relating to, conforming to, or being the Kelvin scale Biographical Definition Kelvin biographical name Kel·vin ˈkel-vən 1st Baron 1824–1907 William Thomson British mathematician and physicist
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kelvin

noun

adjective

Example Sentences

Word History

Medical Definition

noun

adjective

Biographical Definition

biographical name