Grain (disambiguation)

Grains are coarse particles such as sand particles, salt particles or seeds:

• Food grains, the small, hard, fruits or seeds of arable crops or the crops bearing these fruits or seeds. Includes the:
  • cereal grains (caryopsis of grass plants)
    • Whole grains, the cereal grains that contain bran and germ as well as the endosperm
  • pseudocereals: starchy grains produced by broadleaf plants; used like true cereals
  • pulses or grain legumes
  • oilseeds
• Film grain, the gritty texture sometimes apparent on images produced using photographic film or paper (grainy)
• "Fine-grained", designating a more finely differentiated form of a technical or abstract system, in contrast to "coarse-grained", a less differentiated one
• Grain (unit), a unit of mass equal to 64.79891 milligrams,  ¹⁄_7,000 of an avoirdupois pound
• Grain size (or particle size), for particles of rock in geology
• Crystallite or "grain" in metallurgy, a single crystal inside solid-state matter
• Grain, a solid propellant charge, roughly a hollow cylinder, sometimes textured, and possibly very large
• Granular synthesis, a method for digital musical instruments operating on the "microsound" time scale
• Grain (surfboard company), a company that manufactures hollow wooden surfboards
• Wood grain, the alignment and texture of the fibres in wood

Or, more generally:

• Grain (cipher), a stream cipher designed for restricted hardware environments and submitted to eSTREAM in 2004 by Martin Hell et al.
• Grain (textile), the orientation of a woven textile used in a garment.
• Isle of Grain in Kent, England, on which lies the village of Grain
• GRAIN, an international non-governmental organization for sustainable agriculture

Grain may also refer to:

• Grain (magazine), a Canadian literary magazine
• Grain (film), 2015 film
• Border clans in Scotland
• Grains per gallon, a unit of water hardness
• Grain Power Station, a power station in England