Adiabatic /(ăd`ĭ*ȧ*băt"ĭk)/

Ad·i·a·bat·ic

Adiabatic

a.
  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.