Определение social network в Английский Язык Английский Язык словарь
A network of personal or business contacts, especially as facilitated by social networking on the Internet
A social network is a social structure made of nodes (which are generally individuals or organizations) that are tied by one or more specific types of interdependency, such as values, visions, idea, financial exchange, friends, kinship, dislike, conflict, trade, web links, sexual relations, disease transmission (epidemiology), or airline routes