sé·ance (sāäns′, -äɴs′)
1. A meeting of people to receive spiritualistic messages.
2. A meeting, session, or sitting, as of a learned or legislative body.
[French, a sitting, from Old French seoir, to sit, from Latin sedēre; see sed- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.