generator
gen.er.a.tor \'jen-*-.ra-t-*r\ n 1: one that generates 2: an apparatus in which vapor or gas is formed 3: a machine by which mechanical energy is changed into electrical energy 4: GENERATRIX
Webster's English Dictionarygen.er.a.tor \'jen-*-.ra-t-*r\ n 1: one that generates 2: an apparatus in which vapor or gas is formed 3: a machine by which mechanical energy is changed into electrical energy 4: GENERATRIX