red mud

noun

1
: a marine offshore deposit deriving its yellow-brown to red-brown color from iron oxide
red mud … is most prevalent in the Yellow sea and off the coasts of BrazilF. C. Lane
compare blue mud
2
: a residue high in iron oxide resulting from purification of alumina in the Bayer process

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

  1. Expanded definitions
  2. Detailed etymologies
  3. Advanced search tools
  4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now

Dictionary Entries Near red mud

Cite this Entry

“Red mud.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/red%20mud. Accessed 10 Dec. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!