Definition of megapixel noun from the Oxford Advanced Learner's Dictionary

 

megapixel

 noun
noun
BrE BrE//ˈmeɡəpɪksl//
 
; NAmE NAmE//ˈmeɡəpɪksl//
 
 
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a million pixels (= very small individual areas on a computer screen), used to measure the quality of a digital screen or image a 12 megapixel digital camera
See the Oxford Advanced American Dictionary entry: megapixel