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An antibacterial agent active against streptococci isolated from cow's milk.
Farlex Partner Medical Dictionary © Farlex 2012
lacteninA primitive term for a nitrogenous substance (of unknown nature) with anti-streptococcal activity which was isolated from cow’s milk; it is not used in the working medical parlance.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.