Hair is a fiber of keratin that covers the scalp of humans or the skin of many animals. Born in the dermis in the follicle or root and extends away from the skin with its stem or fiber. Pubescence, hair, thread, filament, bristle, coat, Wick, grenå. In Colombia to say a small amount, triviality, Bicocca, insignificance, pucho puchito, nothing, stupid.