epigynum

/ih-pij-uh-nuhm/US // ɪˈpɪdʒ ə nəm //

阴部,阴囊,外阴部,阴户

Definitions

n.名词 noun

1
Zoology.
- : the chitinous plate in arachnids that covers the opening to the female genital tract.

The epigynum of this form was extremely undeveloped, having only a small epigastric furrow with depressions at either end.
The book-lungs openings are found on the ventral surface of the first abdominal segment, as is also the epigynum.
The epigynum consists of a long epigastric furrow with a large lip-like opening near its median line.
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.