Definitions

1. noun

The female reproductive structure of a spider, typically found at the end of the abdomen, which contains the epigynal opening and the oviducts.

“The arachnologist carefully examined the epigyne of the spider to determine its species.”

2. noun

In some other arachnids, the epigyne is a part of the female reproductive system.

“The study of the epigyne in scorpions revealed interesting insights into their reproductive biology.”