Grain

The word grain has a great many meanings, most being descriptive of a small piece or particle. For examples:

• a grain of sand or salt; see grain size for granule
• a grain is a type of simple dry fruit technically called a caryopsis
• in materials science (especially metallurgy), a grain is a single crystal inside solid-state matter, also referred to as crystallite
• a very small unit of weight called a grain
• the fineness of resolution for photographic film (i.e., graininess of a picture)
• wood-grain, and as a description of personality or style from wood-working (i.e. going against the grain)
• also granule, from the diminutive of Latin granum, meaning "grain".

This is a disambiguation page — one that points to other pages that might otherwise have the same name.

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