Scar -
(n) a wound that has healed poorly, or without the sufficient nutrients, causing the location to be filled with fibrous connective tissue instead of the correct skin and body tissues.Or, like I like to consider it, a permanent memory etched into your skin, a reminder that you have lived your life and have the proof - probably a mindset more akin to that of age old cultures with a bit of a romantic flair to the whole thing. (which frankly is kind of weird now that I've typed it out... I'm really strange... :P).