enneapetalousadj.

/ˌɛnɪəˈpɛtələs/Etymology: < Greek ἐννέα nine + πέταλον leaf + -ous suffix.
Botany.
1847 in J. Craig ; and in mod. Dicts.
This entry has not yet been fully updated (first published 1891; most recently modified version published online September 2018).