noun
Etymology: swing (III)
: a device swung on centers so as to yield to unequal pressure in which delicate work (as parts of a watch) is held to be polished
noun
Etymology: swing (III)
: a device swung on centers so as to yield to unequal pressure in which delicate work (as parts of a watch) is held to be polished
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012