What is you definition of pixel art?

Dear Lospec community, I'm a graphic designer writing my thesis on the topic of pixel art and would love to hear your opinions on it.

How do you define pixel art personally? Is it the low resolution, its digital nature, the usage of squares or something else? And why do you particularly enjoy this art form?

Thanks and have a good day!

This post is deleted!

pixel = pixel
art = art
pixel art = art with pixels