Definition: Volcanic cinders ground to particles of varying sizes; used in dentistry for polishing restorations or teeth; an abrasive.
[L. pumex (pumic-), a pumice stone]
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.