The term MEDIUM MILIEU is composed of two words, 'MEDIUM' and 'MILIEU'. The first word, 'MEDIUM', is defined as a means or instrument of communication, such as television, radio, or newspapers. The second word, 'MILIEU', is defined as the physical or social environment in which something exists or develops. Together, the two words form the term MEDIUM MILIEU, which refers to the environment in which media is created and consumed. The crossword solution for this term is SEANCE, which is defined as a meeting of people who are trying to communicate with spirits of the dead.