Usage History of 'exobiologist'

The following chart shows how frequently 'exobiologist' appeared in printed materials over time. For example, the word 'exobiologist' occurred 6 times in books in 1962 and 53 times in 2008. From 1962 to 2008, the word 'exobiologist' was used a total of 2,303 times in books scanned by Google. See Reference: Google Ngram project.

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