volcanic mud
noun
Definition of volcanic mud
: mud that is formed by the mixture with water of volcanic ash or of other fragmental products of volcanic explosions and that is often initially hot and may flow much like a lava stream
From the M-W Editors
There's more!
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up volcanic mud? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!