Usage History of 'tribologists'

The following chart shows how frequently 'tribologists' appeared in printed materials over time. For example, the word 'tribologists' occurred 14 times in books in 1971 and 101 times in 2008. From 1971 to 2008, the word 'tribologists' was used a total of 3,155 times in books scanned by Google. See Reference: Google Ngram project.

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