Any of a group of antibiotics originally isolated from a strain of the soil microorganism Streptomyces mediterranei, used in the treatment of leprosy, tuberculosis, and other bacterial diseases.
Origin:
Origin: Alteration of rifomycin
Origin: : probably Italian rifo(rmare), to reform (ri-, again, from Latin re-; see re- + formare, to form from Latin fōrmāre; see Reform )