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knuckleball

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knuckleball/ˈnʌkəlˌbɑːl/noun
pluralknuckleballs
knuckleball
/ˈnʌkəlˌbɑːl/
noun
pluralknuckleballs
Learner's definition of KNUCKLEBALL  
[count]baseball
: a pitch that is thrown with very little spin by holding the ball with the knuckles or fingertips
— called also knuckler
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