The Collaborative International Dictionary
Sea mud
Sea mud \Sea" mud`\ A rich slimy deposit in salt marshes and along the seashore, sometimes used as a manure; -- called also sea ooze.
Wiktionary
sea mud
n. A rich slimy deposit in salt marshes and along the seashore, sometimes used as a manure.
Usage examples of "sea mud".
Rubbed into her nostrils, Star identified natron, a sea mud used to dry out mummies.