ECOSYSTEM Meaning of ECOSYSTEM in English ecosystem BrE AmE ˈiːk əʊ ˌsɪst əm ˈek-, -ɪm AmE \ -oʊ-▷ ecosystem|s z — Preference poll, British English: ˈiːk- 88%, ˈek- 12%. See chart on p.262. Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012