seance(n = noun.group) session, sitting - a meeting of spiritualists; "the seance was held in the medium's parlor"
is a kind of get together, meeting
has parts: spirit rapping, table rapping, table tapping, table lifting, table tilting, table tipping, table turning

seance, n. (also s{eacute}ance) a meeting at which spiritualists attempt to make contact with the dead.

Etymology:
F s{eacute}ance f. OF seoir f. L sedere sit

N  council, committee, subcommittee, comitia, court, chamber, cabinet, board, bench, staff, senate, senatus, parliament, chamber of deputies, directory, reichsrath, rigsdag, cortes, storthing, witenagemote, junta, divan, musnud, sanhedrim, classis, Amphictyonic council, duma, house of representatives, legislative assembly, legislative council, riksdag, volksraad, witan, caput, consistory, chapter, syndicate, court of appeal, board of control, board of works, vestry, county council, local board, audience chamber, council chamber, state chamber, cabinet council, privy council, cockpit, convocation, synod, congress, convention, diet, states-general, assembly, caucus, conclave, clique, conventicle, meeting, sitting, seance, conference, convention, exhibition, session, palaver, pourparler, durbar, house, quorum, council fire, powwow, primary, meeting, assemblage, member, senator, member of parliament, M, P, councilor, representative of the people, assemblyman, congressman, councilman, councilwoman, alderman, freeholder, senatorial, curule, congressional, parliamentary, legislative, law-making, regulatory, deliberative.