triphthongal

Từ điển Oxford Advanced Learner 8th

triph·thong·al BrE [trɪfˈθɒŋɡl] ; NAmE [trɪfˈθɔːŋɡl] ; [trɪfˈθɑːŋɡl] BrE [trɪpˈθɒŋɡl] ; NAmE [trɪpˈθɔːŋɡl] ; [trɪfˈθɑːŋɡl] adjective
Main entry: ↑triphthong_derived