formation; pattern; system; stage(of development); paradigm(► a set of theories that explain the way a particular subject is understood at a particular time: "The TV network claimed that this was the beginning of "a new paradigm for commercial television." "His account of the effects of globalization does not fit into either of the economic paradigms that are dominant today. ► a model of something, or a very clear and typical example of something: a paradigm of something "The company is seen as a paradigm of entrepreneurship. CBED Alexander Demidov); geol. formation
formation(1. геологическое тело, 2. крупное, обычно литостратиграфическое подразделение, включающее серии пластов горных пород или отложений одного возраста, 3. группа ассоциаций организмов); rock association