n. (Mining) The act of excavating in the form of stopes. [ 1913 Webster ]
n.
n. A method adopted in etching, to keep the acid from those parts which are already sufficiently corroded, by applying varnish or other covering matter with a brush, but allowing the acid to act on the other parts. [ 1913 Webster ]
n.
n. A method adopted in etching, to keep the acid from those parts which are already sufficiently corroded, by applying varnish or other covering matter with a brush, but allowing the acid to act on the other parts. [ 1913 Webster ]