Usage History of 'ionizing'

The following chart shows how frequently 'ionizing' appeared in printed materials over time. For example, the word 'ionizing' occurred 2 times in books in 1763 and 25,281 times in 2008. From 1763 to 2008, the word 'ionizing' was used a total of 1,120,329 times in books scanned by Google. See Reference: Google Ngram project.

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