pu·ro·my·cin (pyŏŏr'ə-mī'sĭn) n. An antibiotic, C22H29N7O5, obtained from the soil bacterium Streptomyces alboniger, that is used experimentally as an inhibitor of protein synthesis.
Main Entry: pu·ro·my·cin Pronunciation: "pyur-&-'mIs-&n Function: noun : an antibioticC22H29N7O5 that is obtained from an actinomycete of the genus Streptomyces (S. alboniger) and is used especially as a potent inhibitor ofprotein synthesis in microorganisms and mammalian cells
(pyŏŏr'ə-mī'sĭn) 