GRAIN

A relatively small granular particle of a substance

Example: "A grain of sand"

Foodstuff prepared from the starchy grains of cereal grasses

The side of leather from which the hair has been removed

A weight unit used for pearls or diamonds: 50 mg or 1/4 carat

1/60 dram; equals an avoirdupois grain or 64.799 milligrams

1/7000 pound; equals a troy grain or 64.799 milligrams

Dry seed-like fruit produced by the cereal grasses: e.g. wheat, barley, indian corn

A cereal grass

Example: "Wheat is a grain that is grown in kansas"

The smallest possible unit of anything

Example: "There was a grain of truth in what he said"

The direction, texture, or pattern of fibers found in wood or leather or stone or in a woven fabric

Example: "Saw the board across the grain"

The physical composition of something (especially with respect to the size and shape of the small constituents of a substance)

Example: "Breadfruit has the same texture as bread"