red mud
A mixture of solid and metallic oxide-bearing impurities that is a waste product of…A mixture of solid and metallic oxide-bearing impurities that is a waste product of bauxite refinement.
Meaning
2 senses(uncountable)A mixture of solid and metallic oxide-bearing impurities that is a waste product of bauxite refinement.
(uncountable)Used other than figuratively or idiomatically: see red, mud.
Origin
Named for its red color, which comes mostly from iron(III) oxide.Named for its red color, which comes mostly from iron(III) oxide.
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Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable