Usage History of 'spectroscopy'

The following chart shows how frequently 'spectroscopy' appeared in printed materials over time. For example, the word 'spectroscopy' occurred 2 times in books in 1750 and 141,220 times in 2008. From 1750 to 2008, the word 'spectroscopy' was used a total of 3,849,818 times in books scanned by Google. See Reference: Google Ngram project.

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