Origin: Greek prefix mega-
Definition, synonyms and related words
One million pixels, used as a unit of resolution of digital cameras.
"The new smartphone camera features a 12-megapixel sensor that captures highly detailed photos in low light."
In plain English: A megapixel is a unit that measures how many tiny picture sensors are packed into your camera to determine image quality.
"This new phone camera has fifty megapixels, so its photos look very sharp and clear."
Usage: Use this term to describe camera sensors or image resolutions by specifying how many millions of individual picture elements they contain. It is often confused with total photo quality, but higher counts do not automatically guarantee better images in low light or when cropping.
Having a resolution of the specified number of megapixels.
"The new smartphone camera boasts a 48-megapixel sensor that captures incredibly sharp details in every photo."
In plain English: A megpixel is an adjective used to describe how many tiny picture-making dots are packed into each square inch of your camera sensor or phone screen.
"The new smartphone has an ultra high-megapixel camera that captures incredibly detailed photos."
From mega- + pixel.