An accumulation of mud, especially as formed by streams.(noun)
The Century Dictionary (Public Domain)
Use "mud-bank" in a sentence
"Der Mary Rebecca yust hang up on efery mud-bank with that hook."
"Consider every molecule of air to be a mud-bank in itself."
"Their bare white stems remaining like a net gripped in the mud, so that these pioneer mangrove heroes may be said to have laid down their lives to make that mud-bank fit for colonisation, for the time gradually comes when other mangroves can and do colonise on it, and flourish, extending their territory steadily; and the mud-bank joins up with, and becomes a part of, Africa."