disperse

definition: 
Divide (light) into constituents of different wavelengths; Distribute or spread over a wide area
sentence: 
Distribute or spread over a wide area: Suburban office and industrial parks and shopping centers competed successfully with central business districts, dispersing economic activity over wide areas.
Divide (light) into constituents of different wavelengths: Light at each end of the optical spectrum is dispersed by a different amount, since the refractive index of any medium depends on frequency
difficulty: 
easy
toefl frequency: 
2
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