an antibiotic drug, CHClNO, prepared synthetically or isolated from a bacillus (Streptomyces venezuelae)
See chloramphenicol in American Heritage Dictionary 4
(klôrˌăm-fĕnˈĭ-kôlˌ, -kŏlˌ, -kōlˌ, klōrˌ-)
noun
An antibiotic, C11H12Cl2N2O5, derived from the soil bacterium Streptomyces venezuelae or produced synthetically and effective against a broad spectrum of microorganisms.