finger-like silk spinning organs located at the posterior end of the abdomen. At the tip of every finger-like extension, there are hundreds of tiny spigots that extrude the silk. Spiders originally had four pairs of spinnerets but through the eons, evolution has altered that. Today, we see two or three pairs and some groups of spiders have a cribe [..]

organs through which silk emerges from a spider's body

organs found in certain insect larvae and in spiders, which are used in spinning silken threads (Glossary of PM)

Tubes which are located on the end of a spiders abdomen which produce silk to spin webs.

the silk-releasing organs of a spider