硫黄細菌 いおうさいきん Meanings Noun sulfur-reducing bacteria Kanji 硫 sulfur 黄 yellow. Read as オウ. 細 fine. Read as サイ. 菌 germ. Read as キン. Words containing 硫黄細菌 紅色硫黄細菌 (こうしょくいおうさいきん) purple sulfur bacteria Jinuma: Japanese Dictionary · Word lists