grain
Definitions (3)
1. Older English unit of weight equal to 64.8 milligrams. There are 15.43 grains in one gram and 7000 in one pound.
2. Jeweler's unit of a diamond's weight equal to 1/4 of a carat or 50 milligrams.
3. Arrangement, direction, or quality of the fibers in wood or wood-products.
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