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

This relationship means that the internal energy of an ideal monatomic gas is constant during an isothermal process—that is, ΔU = 0 .

From Textbooks • Aug. 12, 2015

A set of monthly isothermal charts of the north polar area, based on all available observations, has been prepared by H. Mohn and published in the volume on Meteorology of the Nansen expedition.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" by Various