adjective adi·a·bat·ic \ˌa-dē-ə-ˈba-tik, ˌā-ˌdī-ə-\

Definition of adiabatic

  1. :  occurring without loss or gain of heat adiabatic expansion of a gas


play \-ti-k(ə-)lē\ adverb

Origin and Etymology of adiabatic

Greek adiabatos impassable, from a- + diabatos passable, from diabainein to go across, from dia- + bainein to go — more at come

First Known Use: 1870

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