1. Causing abrasion. 2. Any material used to produce abrasions. 3. A substance used in dentistry for abrading, grinding, or polishing.
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abra·sive ə-'brā-siv, -ziv adj tending to abrade <an \abrasive substance>
abra·sive·ness n
abrasive n a substance (as emery or pumice) used for abrading, smoothing, or polishing called also abradant
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abra·sive (ə-braґsiv) 1. causing abrasion. 2. a substance used for abrading, grinding, or polishing.Medical dictionary. 2011.