levigated abrasive

levigated abrasive

[′lev·ə‚gād·əd ə′brā·siv]
(materials)
A fine abrasive powder for final burnishing of metals or for metallographic polishing; the powder is usually processed to make it chemically neutral.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.