ham ‧ burg ‧ er /ˈhæmbɜːɡə $ -bɜːrɡər/ BrE AmE noun
[ Date: 1800-1900 ; Language: German ; Origin: 'of Hamburg, city in Germany' ]
1 . [countable] a flat round piece of finely cut ↑ beef (=meat from a cow) which is cooked and eaten in a bread ↑ bun
2 . [uncountable] American English beef that has been cut into very small pieces SYN mince British English