Wiktionary
mulm
n. The sludge that collects at the bottom of an aquarium, consisting of fish excrement, decaying plant matter, and other assorted dreck.
Usage examples of "mulm".
Mulm wants a slave revolt-and what Tyrone Burke talked to Hesione LeGros about before she died.
Mulm and his men-or Jacinthe and his sentries-would be waiting, out in the dark of the cipriere.
Uncle Joffrey and his sons or not, though at a guess Mulm has told Jacinthe that the boats will be waiting for them at St.