abrasive
n.
"an abrasive substance," 1853, from abrasive, adj..
adj.
1805, from Latin abras-, past participle stem of abradere "to scrape away, shave off" (see abrasion) + -ive. Figurative sense of "tending to provoke anger" is first recorded 1925. Related: Abrasively; abrasiveness.
〔蒋〕[ras，rad擦，刮，-ive…的] 有研磨作用的，研磨料(如砂纸等)