exciplen.

/ˈɛksɪp(ə)l/
/ˈɛksɪpjuːl/Origin: A borrowing from Latin. Etymon: Latin excipulum.
Etymology: < post-classical Latin and scientific Latin excipulum excipulum n.Compare French excipule (1833 or earlier).
1866 in J. Lindley & T. Moore
This entry has not yet been fully updated (first published 1894; most recently modified version published online June 2022).