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epigynum

noun epig·y·num \ -nəm \
variants: or less commonly epigyne \ˈepəˌjīn\
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Definition of epigynum

plural -s
: the female genital opening of an arachnid; also : a chitinous plate overlying this opening in a spider

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Origin and Etymology of epigynum

New Latin epigynum, from epi- + -gynum (from Greek -gynon, neuter of -gynos -gynous)

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