Grain (disambiguation)

Grains are the seeds of arable crops or the crops bearing them.

Grain or grains may also refer to:

Material structures

Grain (textile), the orientation of a woven textile used in a garment
Grain, a solid-fuel rocket's propellant charge; roughly a hollow cylinder, sometimes textured, and possibly very large
Crystallite or "grain" in metallurgy, a single crystal inside solid-state matter
Film grain, the gritty texture sometimes apparent on images produced using photographic film or paper (grainy)
Grain size (or particle size), for particles of rock in geology
Wood grain, the alignment and texture of the fibres in wood

Isle of Grain in Kent, England
- Grain Power Station, a power station on the Isle of Grain
Grain Valley, Missouri, a city in the US

Grain (unit), a unit of mass equal to 64.79891 milligrams, 1⁄7,000 of an avoirdupois pound
- Grains per gallon, a unit of water hardness
Grain (cipher), a stream cipher designed for restricted hardware environments
- Grain 128a, successor of Grain cipher
Grain (surfboard company), a company that manufactures hollow wooden surfboards
Grain (company), a Series B Singaporean food-delivery startup
GRAIN, an international non-governmental organization for sustainable agriculture
Grain of salt, an idiom