蓝细菌 lánxìjūn cyanobacteria Definitions Defs Origin Strokes Stroke Words Sentences Sents 蓝 藍 lán adjective blue blue; like the color of a clear sky细菌 細菌 xìjūn noun bacteria germ; bacterium; microscopic single-celled organisms that exist in a variety of environments, some of which cause disease while others are beneficial