 ##  [Adiabatic Invariant](/index.php/adiabatic-invariant) 

  ##  [Adiabatic Invariant](https://natural.quantumdictionary.io/adiabatic-invariant-0) 

  
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**Natural &amp; Formal Sciences Dictionary**

 
Definition

An adiabatic invariant is a quantity of a dynamical system that remains approximately constant when external parameters change slowly compared to the system's intrinsic timescales, typically associated with action variables in near‑integrable systems.