SEANCE Meaning of SEANCE in English [ 'seɪɒns , -ɒ~s , -α:ns \]■ noun a meeting at which people attempt to make contact with the dead.OriginC18: Fr. séance , from OFr. seoir , from L. sedere 'sit'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004