isothermal

American  

[ahy-suh-thur-muhl] / ˌaɪ səˈθɜr məl /

Or isothermic

adjective

1. occurring at constant temperature.

2. pertaining to an isotherm.

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noun

1. Meteorology. an isotherm.

isothermal British  

/ ˌaɪsəʊˈθɜːməl /

adjective

1. (of a process or change) taking place at constant temperature

2. of or relating to an isotherm

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noun

1. another word for isotherm

isothermal Scientific  

/ ī′sə-thûr′məl /

1. Relating to or indicating equal or constant temperatures.

2. Relating to a process, usually changes of pressure and volume, occurring at a constant temperature and following Boyle's Law.

3. Relating to an isotherm.

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Other Word Forms

• isothermally adverb

Etymology

Origin of isothermal

1820–30; < French isotherme isothermal (< Greek iso- iso- + thérmē heat) + -al ¹

Example Sentences

"Knowledge of Bernoulli's law, the ideal gas law, and isothermal expansion are the three ingredients we baked into a model to explore how this device worked," Lipscombe said.

From Science Daily • Jan. 23, 2024

"But when it's in that isothermal layer... between the surface and 180 metres... the sound behaves really quite straight."

From BBC • Jun. 21, 2023

Figure 15.23 PV diagram for a Carnot cycle, employing only reversible isothermal and adiabatic processes.

From Textbooks • Aug. 12, 2015

The best heat pump uses adiabatic and isothermal processes, since, in theory, there would be no dissipative processes to reduce the heat transfer to the hot reservoir.

From Textbooks • Aug. 12, 2015

The third operation is an isothermal compression, CD, until the volume and pressure are such that an adiabatic compression DA will just bring the substance back to the original state.

From Lord Kelvin An account of his scientific life and work by Gray, Andrew