What is "launderers"

Usage examples of "launderers".

The hasty violence he'd just been forced to do to a small but enthusiastic band of launderers had done nothing to help matters, but at least he was now largely dry—thanks to a lot of formerly clean clothing that was now, unfortunately, smeared and stained with his blood—and was now sporting a bandage of sorts: a very large someone's freshly laundered bloomers tied around the wound in his shoulder.

He delighted me by letting me know that Master Lew of the launderers had decreed that Sinjon's wort was to be hung at every corner of the courtyard and garlanded about every well to ward off sprites from tomorrow's work.

Another five hundred to plow and tend and hunt, to feed the launderers and the wood-cutters and the candlemakers and themselves, and, oh, yes, we’re self-sufficient.