##  [Quasi-Steady-State Approximation](/quasi-steady-state-approximation) 

  ##  [Quasi-Steady-State Approximation](https://natural.quantumdictionary.io/quasi-steady-state-approximation-0) 

  

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**Natural & Formal Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A model reduction technique in dynamical systems and chemical kinetics that treats certain intermediate species or fast variables as if their time derivatives are zero, assuming they rapidly attain a steady concentration relative to slower variables.