From Lateinisch-Deutsch FreeDict-Wörterbuch ver. 1.0.3: spina /spˈɪna/ (spinae /spˈɪnaɪ/ <gen>) <n, sg, f> Dorn
spina /spˈɪna/ (spinae /spˈɪnaɪ/ <gen>) <n, sg, f> Dorn