|adēə|bad.ik, |āˌdīə- adjective
Etymology: International Scientific Vocabulary adiabat- (from Greek adiabatos impassable, from a- a- (II) + diabatos passable, from diabainein to go across, from dia- + bainein to go) + -ic; originally formed as German adiabatisch — more at come
of a process : occurring without loss or gain of heat by the substance concerned
adiabatic expansion
adiabatic compression
— opposed to diabatic ; compare isentropic
• ad·i·a·bat·i·cal·ly -ə̇k(ə)lē adverb