title: Granule
text: A granule is a large particle or grain.  It can refer to:
  
   Granule (cell biology), any of several submicroscopic structures, some with explicable origins, others noted only as cell type-specific features of unknown function
   Azurophilic granule, a structure characteristic of the azurophil eukaryotic cell type
   Chromaffin granule, a structure characteristic of the chromophil eukaryotic cell type.
   Astrophysics and geology:
   Granule (solar physics), a visible structure in the photosphere of the Sun arising from activity in the Sun's convective zone
   Martian spherules, spherical granules of material found on the surface of the planet Mars
   Granule (geology), a specified particle size of 2–4 millimetres (-1 to -2 on the φ scale)
   Granule, in pharmaceutical terms, small particles gathered into a larger, permanent aggregate in which the original particles can still be identified
   Granule (Oracle DBMS), a unit of contiguously allocated virtual memory
   Granular synthesis of sound
  
  See also 
   Granularity, extent to which a material or system is composed of distinguishable particles
   Granular material, any conglomeration of discrete solid, macroscopic particles (grains)
   Granule cell, a neuron with a small cell body
   Grain (disambiguation)
   Granulation (disambiguation)
   Granulometry (disambiguation)