Adiabatic Invariant
A property of motion which is conserved to exponential accuracy in the small parameter representing the typical rate of change of the gross properties of the body.
See also
Algebraic Invariant, Lyapunov Characteristic NumberExplore with Wolfram|Alpha
WolframAlpha
More things to try:
Cite this as:
Weisstein, Eric W. "Adiabatic Invariant." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/AdiabaticInvariant.html