title: Narrowing
text: # Narrowing
  
  Narrowing may refer to:
  
  * Narrowing (computer science), a type of algorithm for solving equations between symbolic expressions
     * Narrowing of algebraic value sets, a method for the elimination of values from a solution set which are inconsistent with the equations being solved
  * Narrowing (historical linguistics), a type of semantic change
  * Collisional narrowing of a spectral line due to collisions of the emitting species
  * Motional narrowing of a resonant frequency due to the inhomogeneity of the system averaging out over time
  * Perceptual narrowing, a process in brain development
  * Q-based narrowing, a concept in pragmatics
  * Stenosis, the narrowing of a blood vessel or other tubular organ
  