Usage History of 'achromatism'

The following chart shows how frequently 'achromatism' appeared in printed materials over time. For example, the word 'achromatism' occurred 2 times in books in 1730 and 623 times in 2008. From 1730 to 2008, the word 'achromatism' was used a total of 25,925 times in books scanned by Google. See Reference: Google Ngram project.

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