exarticulationn.

/ˌɛksɑːtɪkjʊˈleɪʃən/Etymology: formed as exarticulate v. + -ation suffix.
1658 in E. Phillips
1721 in N. Bailey ; whence in mod. Dicts.
This entry has not yet been fully updated (first published 1894; most recently modified version published online June 2018).