Oxford Advanced American Dictionary

Definition of chicken noun from the Oxford Advanced Learner's Dictionary

Oxford3000

chicken

noun
chicken pronunciation English ˈtʃɪkɪn chicken pronunciation American ˈtʃɪkɪn
 
1 [countable] a large bird that is often kept for its eggs or meatThey keep chickens in the back yard.free-range chickens compare cock, hen2 [uncountable] meat from a chickenfried/roast chickenchicken stock/soupchicken breasts/livers/thighschicken and chips see also spring chicken
Idioms

a chicken-and-egg situation, problem, etc.

a situation in which it is difficult to tell which one of two things was the cause of the other

play chicken

to play a game in which people do something dangerous for as long as they can to show how brave they are. The person who stops first has lost the game
The children had been playing chicken by running across the railway line.
more at don't count your chickens at count verb, run around like a headless chicken at headless, the chickens come home to roost at home adverb