working substance

noun

Definition of working substance

: a usually fluid substance that through changes of temperature, volume, and pressure is the means of carrying out thermodynamic processes or cycles (as in a heat engine)

First Known Use of working substance

1855, in the meaning defined above

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Time Traveler for working substance

Time Traveler

The first known use of working substance was in 1855

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Dictionary Entries Near working substance

working stress

working substance

working week

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Cite this Entry

“Working substance.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/working%20substance. Accessed 21 May. 2022.

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