Meanings
- uncountablemedicineA bactericidal antibiotic, primarily used in the treatment of tuberculosis, whose effect is based on blocking the DNA-dependent RNA-polymerase of the bacteria.
Origin
From rifa- (“rifamycin derivative”).
Full word history & related roots →Cite this entry
rifabutin. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/rifabutin
“rifabutin.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rifabutin. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “rifabutin,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/rifabutin.
Source: rifabutin on Wiktionary, CC BY-SA 4.0.