pyroclastic

Definitions

Mostly composed of rock fragments of volcanic origin or comminuted during an eruption.

not-comparable

Equivalents

Examples

“The word "ash" is not a very good one to include⟳ all the mechanical accompaniments of a subaerial or subaqueous eruption, since ash seems to be restricted to a fine powder, the residuum of combustion. A word is wanting to express⟳ all such accompaniments, no matter⟳ what their size or condition may be, when they are accumulated in such mass as to form⟳ beds of "rock." We might call⟳ them perhaps "pyroclastic materials," ...”

“Within sixty seconds, the entire area was razed by pyroclastic material with a temperature of nearly two thousand degrees Fahrenheit.”

CEFR level