Usage History of 'elliptical'

The following chart shows how frequently 'elliptical' appeared in printed materials over time. For example, the word 'elliptical' occurred 2 times in books in 1574 and 69,105 times in 2008. From 1574 to 2008, the word 'elliptical' was used a total of 2,283,120 times in books scanned by Google. See Reference: Google Ngram project.

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