火山灰 Traditional form: 火山灰 Pinyin (reading): huǒshānhuī Definitions: volcanic ash Characters: 火 - fire, flame; to burn; anger, rage 山 - mountain, hill, peak 灰 - ashes; dust; lime, mortar Traditional characters: 火 - fire, flame; to burn; anger, rage 山 - mountain, hill, peak 灰 - ashes; dust; lime, mortar