粉尘 Traditional form: 粉塵 Pinyin (reading): fěnchén Definitions: dust airborne powder solid particulate matter Characters: 粉 - powder, flour, cosmetic powder; plaster 尘 - cinders, ashes, dust, dirt Traditional characters: 粉 - powder, flour, cosmetic powder; plaster 塵 - cinders, ashes, dust, dirt