Granule

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)