(woodworking, of sanding or planing a piece of wood) Preventing a smooth, level surface from being formed by raising the nap of the wood or causing larger splinters to form ahead of the cutting tool below the cutting surface.

An internal interface that separates neighbouring misoriented single crystals in a polycrystalline solid.

(agriculture, Canada, US) A large structure for the storage of grain. It is more specialized than a regular granary in that in uses an elevating mechanism to hold the grain in one of many different bins, and that it it designed to fill large trucks and train cars for shipping grain in bulk.

Whisky made from unmalted barley mixed with maize or rye.

(botany) A single male reproductive particle of which the pollen of a plant consists.

plural of pollen grain

plural of feed grain

plural of coarse-graining

(sciences) The rescaling of a phenomenon into units or cells of size close to the uncertainty of measurement.

Grain seed saved from one year's harvest for the subsequent year's planting.