##  [Separatrix](/separatrix) 

  ##  [Separatrix](https://natural.quantumdictionary.io/separatrix-0) 

  

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**Natural & Formal Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

An invariant trajectory or invariant manifold in a dynamical system that separates regions of qualitatively different phase-space behavior, often formed by the stable or unstable manifold of a saddle-type invariant set.