The term UNIT HAMBURGER is composed of two words, PATTY and HAMBURGER. The word PATTY is a 5-letter word which refers to a flat, usually round, cake of minced or chopped food, especially meat, typically used in a HAMBURGER. The word HAMBURGER is a 9-letter word which refers to a sandwich consisting of a cooked patty of ground meat, usually beef, placed inside a sliced bun. Together, the two words form the term UNIT HAMBURGER, which is a HAMBURGER made with a single patty.