hypopygium

noun

hy·​po·​pyg·​i·​um

variants or less commonly hypopygidium

"+pəˈjidēəm

plural hypopygia also hypopygidia

-ēə

: a modified 9th abdominal segment of many insects with which the copulatory apparatus is associated

especially : such a modified segment together with the copulatory apparatus of a dipterous insect

Word History

Etymology

New Latin, from hypo- + -pygium (from pyg- + -ium) or -pygidium (from Greek pygidion small rump)

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