摩擦著的磨蝕劑
Abradant \Ab*ra"dant\, n. A material used for grinding, as emery, sand, powdered glass, etc.
abradant n 1: a substance that abrades or wears down [syn: {abrasive}, {abrasive material}] 2: a tool or machine used for wearing down or smoothing or polishing [syn: {abrader}]