Usage History of 'zoospore'

The following chart shows how frequently 'zoospore' appeared in printed materials over time. For example, the word 'zoospore' occurred 18 times in books in 1845 and 670 times in 2008. From 1845 to 2008, the word 'zoospore' was used a total of 67,925 times in books scanned by Google. See Reference: Google Ngram project.

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