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dispersion

noun [U]
 
 
/dɪˈspɜː.ʃən/ US  /-ˈspɝː-/

Definition

formal → disperseSpreading and scattering specialized the separation of light into different coloursOptics, microscopy and lasersEyesight, glasses and lenses
(Definition of dispersion noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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