rosin-core solder
rosin-core solder
[′räz·ən ¦kȯr ′säd·ər] (materials)
Solder made up in tubular or other hollow form, with the inner space filled with noncorrosive rosin flux.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.