noun
: 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
noun
: 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
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012