Spinnerettes are the silk-spinning organs on a spider's body.
Spinnerettes are important for spiders because they help them make webs and catch food.
Examples:
The spider uses its spinnerettes to make a web.
The spinnerettes help the spider catch bugs.
The spinnerettes are on the spider's bottom.
The spider's spinnerettes are like a magic web-making machine!
The spider has eight spinnerettes to make lots of webs.
The spinnerettes make the spider a web-making superhero!