Usage History of 'karyotype'

The following chart shows how frequently 'karyotype' appeared in printed materials over time. For example, the word 'karyotype' occurred 2 times in books in 1928 and 9,875 times in 2008. From 1928 to 2008, the word 'karyotype' was used a total of 361,488 times in books scanned by Google. See Reference: Google Ngram project.

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