noun
: one who examines a coal mine to determine whether firedamp is present, to search for fires caused by blasting, and to check on the general safety of the mine — called also fireman, gasman
noun
: one who examines a coal mine to determine whether firedamp is present, to search for fires caused by blasting, and to check on the general safety of the mine — called also fireman, gasman
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012