abrasive

n. substance used for grinding, substance used for polishing (i.e. sandpaper)

adj. tending to rub or scrape, tending to abrade

An abrasive is a material, often a mineral, that is used to shape or finish (see metal polishing and wood finishing) a workpiece through rubbing which leads to part of the workpiece being worn away. While finishing a material often means polishing it to gain a smooth, reflective surface it can also involve roughening as in satin, matte or beaded finishes.
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Noun
1. a substance that abrades or wears down
(synonym) abradant, abrasive material
(hypernym) material, stuff
(hyponym) carborundum
Adjective
1. causing abrasion
(synonym) scratchy
(similar) rough, unsmooth
2. sharply disagreeable; rigorous; "the harsh facts of court delays"; "an abrasive character"
(synonym) harsh
(similar) disagreeable

adj. abrasive, scraping

adj. abrasive, tending to rub or scrape, tending to abrade