Usage History of 'infiltrative'

The following chart shows how frequently 'infiltrative' appeared in printed materials over time. For example, the word 'infiltrative' occurred 6 times in books in 1848 and 5,606 times in 2008. From 1848 to 2008, the word 'infiltrative' was used a total of 163,384 times in books scanned by Google. See Reference: Google Ngram project.

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