adj. Of, relating to, or being a reversible thermodynamic process that occurs without gain or loss of heat and without a change in entropy. [From Greek adiabatos, impassable : a-, not; see A-1 + diabatos, passable (dia-, dia- + batos, passable, from bainein, to go; see gwā- in the Appendix of Indo-European roots).] ad′i·a·bati·cal·ly adv. |
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