fu ‧ mi ‧ gate /ˈfjuːməɡeɪt, ˈfjuːmɪɡeɪt/ BrE AmE verb [transitive]
[ Date: 1500-1600 ; Language: Latin ; Origin: fumigare , from fumus ; ⇨ ↑ fume ]
to remove disease, ↑ bacteria , insects etc from somewhere using chemicals, smoke, or gas
—fumigation /ˌfjuːməˈɡeɪʃ ə n, ˌfjuːmɪˈɡeɪʃ ə n/ noun [uncountable]