wastewater

noun

1. (countable, uncountable)Any water that has been used in some human domestic or industrial activity and, as a result, now contains waste products.

   “Near-synonyms: sewage, sullage, graywater, blackwater, washwater, poop water (informal)”

   “The commission's recommendations would require the removal of toxins and heavy metals from wastewaters that now run into regional rivers and New York Harbor untreated, and collect at their bottom.”

   “As the zoogleal slime reenters the wastewater, excess solids and waste products are stripped off the media as sloughings. These sloughings are transported with the wastewater flow to a settling tank for removal.”

   “Flash forward to 2017, early in the Trump presidency. From the wastewaters of the internet, cryptic comments float up from an anonymous figure known only as Q.”