Definition of rifamycin in English:

rifamycin

(also rifomycin)

noun

Pharmacology
  • Any of a group of natural and semi-synthetic antibiotics originally isolated from the actinomycete Nocardia mediterranei, which inhibit microbial DNA-dependent RNA synthesis and have a bactericidal action, especially on mycobacteria and Gram-positive bacteria.

Origin

1950s. Probably from rifo- + -mycin. Compare Italian rifomicina.

Pronunciation

rifamycin

/rɪfəˈmʌɪsɪn/