落尘 luòchén atmospheric dust fall Definitions Defs Origin Strokes Stroke Words Sentences Sents luòchén atmospheric dust fall · radioactive fallout · particulate fallout 落 luò verbparticle to fall to fall; to drop; to go down; (of the sun or moon) to set; (of a tide) to go out; to decline; to sink尘 塵 chén noun dust (bound form) dust; dirt; earth; tiny particles of soilluòchén to fall to earth 落 luò verbparticle to fall to fall; to drop; to go down; (of the sun or moon) to set; (of a tide) to go out; to decline; to sink尘 塵 chén this world (bound form) this world; the secular world; human life, as in 红尘 hóngchén