Usage History of 'operculums'

The following chart shows how frequently 'operculums' appeared in printed materials over time. For example, the word 'operculums' occurred 2 times in books in 1796 and 10 times in 2008. From 1796 to 2008, the word 'operculums' was used a total of 909 times in books scanned by Google. See Reference: Google Ngram project.

See also:

Find all anagrams of 'operculums'
Words starting with a,b,c...
Words ending with a,b,c...
Words starting & ending with a,b,c....