TUMEFACIENT Meaning of TUMEFACIENT in English tumefacient BrE AmE ˌtjuːm ɪ ˈfeɪʃ i‿ənt ◂ ⇨ˌtʃuːm-, § ˌ•ə-, -ˈfeɪs-, -ˈfeɪʃ ə nt AmE ˌtuːm- ˌtjuːm- Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012