Antibiotic drug used against many infections.
An antibiotic derived from microorganisms of the genus Streptomyces and used broadly to treat infections (Achromycin is a trade name); SYN. Achromycin.
One of a group of antibiotic compounds having in common the four-ring structure of chlortetracycline, the first member of the group to be isolated. They are prepared synthetically or obtained from certain bacteria of the genus Streptomyces. They are broad-spectrum antibiotics, effective against a wide range of disease-causing bacteria.