Grain

Grain may refer to:

• The grain (semilla), small, hard and dry seed, with or without shell, harvested for human or animal consumption.
• La cariópside (or grain), type of simple fruit typical of cereals.
  • Them cereals (or grains) themselves.
• The grain (law), unit of measure of the law of precious metals and gems.
• The grain (mass unit), minimum mass unit in the English measurement system.
• The grain (mineral), barely perceptible fragment of rock.
• La granularity (or grain), size of particles that form the photosensitive layer that covers the photographic film or the photographic paper.
• La eflorescence (dermatology) (or grain), small lumping (such as a papula or a pustula) that is born somewhere in the body, sometimes containing pus.
• Grano (North Dakota)Renville County, North Dakota State, United States.

In addition, it may refer to:

• The metric grainmass unit used in jewelry.