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hypandrium

noun
hy·​pan·​dri·​um | \hiˈpandrēəm, hīˈ-\
plural hypandria\ -​ēə \

Definition of hypandrium 

: a plate or modified area underlying the genitalia of a male insect especially : the fused coxites of the ninth abdominal segment when these form a ventral covering plate for the genitalia

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History and Etymology for hypandrium

New Latin, from hypo- + andr- + -ium

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