硫黄いおう細さい菌きんいおうさいきんMeanings1nounsulfur-reducing bacteriaTechnical term in microbiology for bacteria that reduce sulfur compounds.硫黄いおう細さい菌きんは硫りゅう化か水すい素そを酸さん化かしてエネルギーを得える。Sulfur-reducing bacteria oxidize hydrogen sulfide to obtain energy.