D defs.my
Entry 1 sense Webster, 1913

Adiabatic

/(ăd`ĭ*ȧ*băt"ĭk)/ · Ad·i·a·bat·ic · IPA /ˌeɪ.dɪəˈbæt.ɪk/
01 a. Not giving out or receiving heat.
  1. 1.
    Not giving out or receiving heat.(Physics)
Phrases & compounds
Adiabatic line [or] curve — a curve exhibiting the variations of pressure and volume of a fluid when it expands without either receiving or giving out heat.