1. A slender, bristle-like extension or appendage on the grain or seed of grasses and cereals.
Usage: botanical term; commonly used in agriculture and botany

Examples

• The arista on the barley grain helps with seed dispersal.
• Wheat varieties with long aristae are often more drought-resistant.
• The arista extends from the tip of the grain like a fine hair.
• Farmers sometimes remove the arista during grain processing.
• The arista's bristly structure aids in wind pollination.