noun
: one of a pair of index centers bolted to the table of a planer and used to support work which is to be planed round or in which radial slots are to be cut
noun
: one of a pair of index centers bolted to the table of a planer and used to support work which is to be planed round or in which radial slots are to be cut
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012