adiabatic process

English Thesaurus

1. (thermodynamics) any process that occurs without gain or loss of heat (noun.process)

hypernym	:	action, activity, natural action, natural process,
definition	:	a process existing in or produced by nature (rather than by the intent of human beings) (noun.process)

domain category	:	thermodynamics,
definition	:	the branch of physics concerned with the conversion of different forms of energy (noun.cognition)