eruptional

== English == === Etymology === From eruption +‎ -al. === Adjective === eruptional (comparative more eruptional, superlative most eruptional) eruptive of or pertaining to an eruption ==== Derived terms ==== === References === “eruptional”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.