Usage History of 'biofilm'

The following chart shows how frequently 'biofilm' appeared in printed materials over time. For example, the word 'biofilm' occurred 4 times in books in 1938 and 24,645 times in 2008. From 1938 to 2008, the word 'biofilm' was used a total of 348,338 times in books scanned by Google. See Reference: Google Ngram project.

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