Usage History of 'radiotherapy'

The following chart shows how frequently 'radiotherapy' appeared in printed materials over time. For example, the word 'radiotherapy' occurred 4 times in books in 1893 and 78,270 times in 2008. From 1893 to 2008, the word 'radiotherapy' was used a total of 1,590,166 times in books scanned by Google. See Reference: Google Ngram project.

See also:

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