From Longman Dictionary of Contemporary Englishshuttlecockshut‧tle‧cock /ˈʃʌtlkɒk $ -kɑːk/ noun [countable] 
DSOa small light object that you hit over the net in the game of badminton SYN birdie American English
DSOa small light object that you hit over the net in the game of badminton SYN birdie American EnglishExamples from the Corpus
shuttlecock• If the consumer decides to participate then he or she will require a racket, shuttlecocks, clothing and footwear.• I suddenly saw her as the shuttlecock in the game her husband is playing with his inamorata. 