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isothermal

American  
[ahy-suh-thur-muhl] / ˌaɪ səˈθɜr məl /
Or isothermic

adjective

  1. occurring at constant temperature.

  2. pertaining to an isotherm.


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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. another word for isotherm

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
isothermal Scientific  
/ ī′sə-thûrməl /
  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.


Other Word Forms

  • isothermally adverb

Etymology

Origin of isothermal

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"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

Among them are the isobaric, isochoric, isothermal and adiabatic processes.

From Textbooks • Aug. 12, 2015

It is unlikely that a process can be isothermal unless it is a very slow process.

From Textbooks • Aug. 12, 2015

Such zones or divisions of the land, ocean, or atmosphere, which have an equal degree of mean annual warmth, are said to be isothermal, from ισος, isos, equal, and θερμη, therme, heat.

From Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology by Lyell, Charles, Sir