ther·​mo·​dy·​nam·​ics | \ ˌthər-mō-dī-ˈna-miks How to pronounce thermodynamics (audio) , -də- \
plural in form but singular or plural in construction

Definition of thermodynamics

1 : physics that deals with the mechanical action or relations of heat
2 : thermodynamic processes and phenomena

Other Words from thermodynamics

thermodynamicist \ ˌthər-​mō-​dī-​ˈna-​mə-​sist How to pronounce thermodynamics (audio) , -​də-​ \ noun

Examples of thermodynamics in a Sentence

Recent Examples on the Web These common observations are generalized and sharpened in the science of thermodynamics. Frank Wilczek, WSJ, 1 Sep. 2022 It’s this ignorance of the microstates that compels classical thermodynamics to speak of averages and ensembles. Quanta Magazine, 26 May 2022 Fluid motion, thermodynamics of air and water, radiative transfer and the movement of the Earth on its orbit around the sun are all fundamental components that give rise to the complexity of the weather and climate system. Gavin Schmidt, Scientific American, 12 Oct. 2021 But the first law of thermodynamics says that matter and energy can never be destroyed or created. David Marchesephoto Illustration By Bráulio Amado, New York Times, 17 July 2022 This observation broke the the first law of thermodynamics, which states that energy cannot be created or destroyed. Joanna Thompson, Scientific American, 15 June 2022 The answer turned out to be a simple exercise in thermodynamics. Jen Wang, Vogue, 21 Apr. 2022 Sarafin said the team occasionally speaks with personnel who worked on the previous programs, comparing the challenges of physics, fluid dynamics, thermodynamics, supercold temperatures, structural stresses and flammability hazards. Ashley Strickland, CNN, 15 Apr. 2022 In thermodynamics, a phase transition describes a substance changing state without altering its chemical composition. Katy Waldman, The New Yorker, 14 Apr. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'thermodynamics.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of thermodynamics

1854, in the meaning defined at sense 1

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Time Traveler for thermodynamics

Time Traveler

The first known use of thermodynamics was in 1854

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Dictionary Entries Near thermodynamics

thermodynamic potential


thermodynamic scale

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Statistics for thermodynamics

Last Updated

13 Sep 2022

Cite this Entry

“Thermodynamics.” Dictionary, Merriam-Webster, Accessed 26 Sep. 2022.

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More Definitions for thermodynamics


noun, plural in form but singular or plural in construction
ther·​mo·​dy·​nam·​ics | \ -iks How to pronounce thermodynamics (audio) \

Medical Definition of thermodynamics

1 : physics that deals with the mechanical action or relations of heat
2 : thermodynamic processes and phenomena

More from Merriam-Webster on thermodynamics

Nglish: Translation of thermodynamics for Spanish Speakers Encyclopedia article about thermodynamics


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