 ##  [Quasi-Periodic Motion](/quasi-periodic-motion) 

  ##  [Quasi-Periodic Motion](https://natural.quantumdictionary.io/quasi-periodic-motion-0) 

  
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**Natural &amp; Formal Sciences Dictionary**

 
Definition

A trajectory or signal composed of a finite sum of incommensurate (noninteger-ratio) frequencies, producing motion that never exactly repeats but fills a toroidal subset of phase space densely.