electrolier UK /ɪˌlɛk.tɹəˈlɪ.ə/US /əˌlɛk.tɹəˈlɪ.əɹ/ noun1 •(old-fashioned) A fixture, usually hanging from a ceiling, for holding electric lamps; specifically, a chandelier lit by electricity rather than with candles or gas.Artificial illumination is furnished by incandescent electric lamps pendant from a large corona and from side electroliers. — 1891 formselectroliers