The word paradigm () has been used in science to describe distinct concepts. It comes from Greek "\317\200\316\261\317\201\316\254\316\264\316\265\316\271\316\263\316\274\316\261" (paradeigma), "pattern, example, sample"\317\200\316\261\317\201\316\254\316\264\316\265\316\271\316\263\316\274\316\261,