PHOTOSYNTHESIS Meaning of PHOTOSYNTHESIS in English photosynthesis BrE AmE ˌfəʊt əʊ ˈsɪn t θ əs ɪs -ɪs ɪs, § -əs AmE ˌfoʊt̬ oʊ- Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012