diadelphn.
/ˈdʌɪədɛlf/ Botany. rare. Apparently only attested in dictionaries or glossaries.
A plant of the class Diadelphia.
ΚΠ
1828 in N. Webster Amer. Dict. Eng. Lang. ; whence in later Dicts.
This entry has not yet been fully updated (first published 1895; most recently modified version published online June 2021).
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n.1828