What is "stingrays"

Usage examples of "stingrays".

Blackened pages of old magazines, little more than large flakes of ash, glided lazily toward them through the air, like stingrays seeking prey, and great schools of tiny lanternfish swam overhead in sinuous parades, sometimes extinguishing themselves when they collided with the maze walls, but in other places sparking small new fires, not yet attracted downward to the hair and clothes that they would eventually find so tasty.

There were low whines as the battery-driven twin motors in the Stingrays kicked their twin propellers into action.