title: Accretion
text: # Accretion
  
  Accretion may refer to:
  
  ## Science
  
  * Accretion (astrophysics), the formation of planets and other bodies by collection of material through gravity
  * Accretion (meteorology), the process by which water vapor in clouds forms water droplets around nucleation sites
  * Accretion (coastal management), the process where coastal sediments return to the visible portion of the beach following storm erosion
  * Accretion (geology), the increase in size of a tectonic plate by addition of material along a convergent boundary
  
     * Accretionary wedge
  
  ## Other uses
  
  * Accretion (finance), predictable changes in the price of certain securities
  