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fraction

 
 
/ˈfrækʃən/ noun [C]

Definition

PART a number less than 1, such as 12; or 34;
AMOUNT a very small number or amount: a fraction of a second
fractionally adverb by a very small amount: Harry is fractionally taller than Ben.
(Definition of fraction noun from the Cambridge Learner's Dictionary © Cambridge University Press)

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