火か山ざん爆ばく発はつMeaningsNoun1. volcanic explosionKanji used火fire山mountain爆explosion発let outComposed of火か山ざんvolcanoNoun爆ばく発はつexplosion; detonation; blast; blowing up; eruption; outburst (of emotion); explosion (e.g. of anger); eruption (e.g. of discontent)Noun