ˈ ̷ ̷ˌ ̷ ̷ noun
1.
a. : a mass of mingled volcanic particles and water which flows like lava from a volcano
b. : a body of rock formed in this manner
2. : an eruption of mud from a mud volcano or mud spring
3. : a moving mass of soil made fluid by rain or melting snow : a mud avalanche — compare earthflow
4. : a minor structure present in various finegrained sedimentary rocks and indicative of local flowage while the material was still soft