(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.

plural of pollen grain

(of timber) Having an irregular rather than a parallel grain. / (by extension) Difficult to deal with; contrary or troublesome.

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

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

Whisky made from unmalted barley mixed with maize or rye.

(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.

plural of grain physa

Physella hordacea (or Physa hordacea), a freshwater snail endemic to the northwestern United States.

plural of grain physa