- the chitinous plate in arachnids that covers the opening to the female genital tract.
Also ep·i·gyne [ep-i-jahyn] /ˈɛp ɪˌdʒaɪn/.
Origin of epigynum
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for epigynum
Its size and markings are the same, and the epigynum is like that of longipes.
The openings of the epigynum (fig. 273) are about their diameter apart.
The finger of the epigynum is usually absent, as if broken off.
The latter is covered in females by an apparatus, sometimes large and complicated, called the epigynum.
The plainest difference between the females is in the epigynum, the hard and dark parts of which are larger and longer in incerta.