tri ‧ age /ˈtriːɑːʒ $ triˈɑːʒ, ˈtriːɑːʒ/ BrE AmE noun [uncountable] technical
[ Date: 1700-1800 ; Language: French ; Origin: trier 'to arrange and choose from' ; ⇨ ↑ try 1 ]
the method of deciding who receives medical treatment first, according to how seriously someone is injured