/ ˌjuːtrəfɪˈkeɪʃn; NAmE / noun
[ U ] ( technical ) the process of too many plants growing on the surface of a river, lake, etc., often because chemicals that are used to help crops grow have been carried there by rain
/ ˌjuːtrəfɪˈkeɪʃn; NAmE / noun
[ U ] ( technical ) the process of too many plants growing on the surface of a river, lake, etc., often because chemicals that are used to help crops grow have been carried there by rain
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005