No, side scrolling is a type of 3rd person view. Top-down, oblique, isometric, and birds-eye views are also all 3rd person. 3rd person view is anything that isn't 1st person.
People have said all sorts of bizarre and inaccurate things about second person games. Like you view your character from the view of your enemies, etc. But if you look at the definition of second-person, you'll realize that a 2nd person game can't exist. There isn't really any simple means of doing it. If you see from the player's eyes, it's first person. If you see from an external camera, it's third person. Second person would be something else other than seeing from either outside the player or from inside the player. Could you tell me where the camera is, if it isn't either in the player or not in the player? I guess the best place it could be is nowhere, but that would be better known as no perspective.
Side scrolling would be awesome though.