DEMI-GLACE Meaning of DEMI-GLACE in English [ 'dɛmɪglas ](also demi-glaze ) ■ noun a rich, glossy brown sauce, typically flavoured with wine and served with meat.OriginFr., lit. 'half glaze'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004