ester gum
(redirected from Glycerol esters of wood rosins)Also found in: Wikipedia.
ester gum
[′es·tər ‚gəm] (organic chemistry)
A compound obtained by forming an ester of a natural resin with a polyhydric alcohol; used in varnishes, paints, and cellulosic lacquers. Also known as rosin ester.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.