What does the term the naked eye mean?

The term for visible with the unaided (naked) eye is "gross", as in gross anatomy.

It means you cannot see it unless you use a telescope or a microscope, or something like that to make it visible to you.

Firstly, it means "The Average". The mean is when you add all of the numbers together, then divide by how many numbers there are.

♥If you do something to some person, that person is going to pay you with the same thing...if you took his/her eye, you're going to give one of yours...it doesn't have to be one eye, if you ate...

From Urban Dictionary:a look of contempt or disdain. a loaded glance."Look, I'm sorry but that's the way it is. Stop being a sour-puss. I see you giving me the stink-eye".