Usage History of 'orographical'

The following chart shows how frequently 'orographical' appeared in printed materials over time. For example, the word 'orographical' occurred 4 times in books in 1812 and 367 times in 2008. From 1812 to 2008, the word 'orographical' was used a total of 15,541 times in books scanned by Google. See Reference: Google Ngram project.

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