1.[countableC]DFF a flat round piece of finely cut beef (=meat from a cow) which is cooked and eaten in a breadbun 汉堡包;汉堡牛肉饼 →4 See picture of 见图 FAST FOOD
2.[uncountableU]American EnglishAmEDF beef that has been cut into very small pieces 碎牛肉SYN British English mince
Examples from the Corpus
hamburger• Perhaps you can also sling a hamburger, skimming it like a Frisbee from pan to plate.• You could eat all the free hamburgers you wanted, but they all were Jack in the Box hamburgers.• Peter may be forced to settle for a lifetime of french fries, hamburgers, and humiliation.• The Romans had hamburgers, you know.• The popularimage is that they are mostly teen-agers in relatively high-income families working in hamburgerjoints for joy money.• Could you pick up a pound of hamburger on your way home?• In addition to this the shift from Wimpy to BurgerKing has altered the technology used in production of the hamburgers.• Of course, these hamburgers will be sold alongside HappyMeals in restaurants that include indoorkiddieplaygrounds.