Usage History of 'heterokaryon'

The following chart shows how frequently 'heterokaryon' appeared in printed materials over time. For example, the word 'heterokaryon' occurred 6 times in books in 1928 and 493 times in 2008. From 1928 to 2008, the word 'heterokaryon' was used a total of 29,177 times in books scanned by Google. See Reference: Google Ngram project.

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