Dictionary
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)
ADVERTISEMENT
First Known Use of WORKING SUBSTANCE
1855
Browse
Next Word in the Dictionary: workingwomanPrevious Word in the Dictionary: working stressAll Words Near: working substance
ADVERTISEMENT
Seen & Heard
What made you want to look up working substance? Please tell us where you read or heard it (including the quote, if possible).