Wheat or any other cultivated cereal crop used as food. A single fruit or seed of a cereal. The smallest unit of weight in the troy and avoirdupois systems, equal to 1 / 5760 of a pound troy and 1 / 7000 of a pound avoirdupois (approximately 0.0648 grams). The longitudinal arrangement or pattern of fibers in wood, paper, etc.. A person's character or natural tendency. Kermes or cochineal, or dye made from either of these. Give a rough surface or texture to. Paint (especially furniture or interior surfaces) in imitation of the grain of wood or marble. Remove hair from (a hide). Feed (a horse) on grain.