Do you consider your self a nerd ?What is the defition of a nerd ?

I dont think i am a nerd but i just manage everything in some sort of balanced way. I like studying, i am interested in all the college stuff and i really enjoy it. But i wouldnt call myself or let anybody call me a nerd for that reason. You call a person nerd only when he relates every single thing he sees in his life to some concept that he has studied. A nerd is a person who knows only studying and is not interested in anything else. I am not such type. Definitely.