藍色細菌 あいいろさいきん Meanings Noun blue-green bacterium; cyanobacteria; cyanobacterium See also: 藍藻 (らんそう). Kanji 藍 indigo. Read as あい. 色 color. Read as いろ. 細 fine. Read as サイ. 菌 germ. Read as キン. Jinuma: Japanese Dictionary · Word lists