black mud
black mud · black muds
Used other than figuratively or idiomatically: see black, mudUsed other than figuratively or idiomatically: see black, mud.
Meaning
2 senses(countable, uncountable)Used other than figuratively or idiomatically: see black, mud.
(countable, uncountable)Reduced mud found below the surface of sediments in lakes and rivers, the blackness of which is caused by the occurrence of metal sulphides.
Forms
plural: black muds| Singular | black mud |
|---|---|
| Plural | black muds |
regular
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable