antibiotic defined in 1951 year

antibiotic - antibiotic;
antibiotic - Substance produced by living organisms which diffuses into its surroundings and is toxic there to individuals belonging to other species. Antibiotics have been obtained from many microorganisms that inhabit the soil and may be an important factor in the competition amongst micro-organisms that is a characteristic of their life in this environment. The phenomenon of antibiosis has been successfully exploited in medicine, the first discovered antibiotic being penicillin, produced by several species of Penicil-Hum., which is very toxic towards most gram-positive bacteria such as Streptococcus pneumoniae cause of pneumonia.

near antibiotic in Knolik

letter "A"
start from "AN"

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