Definition of pixel
1 : any of the small discrete elements that together constitute an image (as on a television or computer screen)
2 : any of the detecting elements of a charge-coupled device used as an optical sensor
Origin and Etymology of pixel
pix + element
First Known Use: 1965
PIXEL Defined for English Language Learners
Definition of pixel for English Language Learners
: any one of the very small dots that together form the picture on a television screen, computer monitor, etc.
PIXEL Defined for Kids
Definition of pixel for Students
: any of the small parts that make up an image (as on a computer or television screen)
Seen and Heard
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