Pronunciation: (thī"ō-bu-sil'us), [key]
—pl. -cil•liPronunciation: (-sil'ī). [key] Bacteriol.
any of several rod-shaped bacteria of the genus Thiobacillus, inhabiting soil, sewage, etc., that derive energy from oxidation of sulfur or sulfur compounds.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.