path ‧ o ‧ gen /ˈpæθədʒ ə n, -dʒen/ BrE AmE noun [countable] technical
[ Date: 1800-1900 ; Language: Greek ; Origin: pathos ( ⇨ ↑ pathos ) + English -gen 'producing' ]
something that causes disease in your body ⇨ germ
—pathogenic /ˌpæθəˈdʒenɪk◂/ adjective