Meaning ofgrainin English

Noun

1. a unit of mass (small); based on grain's weight
2. a unit for measuring precious stones; exactly 50 mg
3. a region with a single crystal structure
   The material scientist studied a single grain of metal.
4. harvested seeds of grass food crops
   Farmers harvest grain from their fields every autumn.
5. a single seed of grass or crop
   The farmer carefully planted a single grain of wheat in the soil.
6. a linear texture (of materials, surfaces)
   The wood had a beautiful grain that shone in the light.
7. a small particle (of a substance)
   The researcher analyzed a grain of sand under the microscope.
8. visual texture (in photographic film)
   The photographer adjusted the camera to reduce the grain in the image.