Usage History of 'radial'

The following chart shows how frequently 'radial' appeared in printed materials over time. For example, the word 'radial' occurred 4 times in books in 1590 and 208,713 times in 2008. From 1590 to 2008, the word 'radial' was used a total of 7,538,376 times in books scanned by Google. See Reference: Google Ngram project.

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