Usage History of 'penicillins'

The following chart shows how frequently 'penicillins' appeared in printed materials over time. For example, the word 'penicillins' occurred 2 times in books in 1882 and 8,629 times in 2008. From 1882 to 2008, the word 'penicillins' was used a total of 323,220 times in books scanned by Google. See Reference: Google Ngram project.

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