ðə tɹænsˈɪʃən pˈɔɪnt bᵻtwˌiːn tˈuː stˈeɪbəl ˈæksᵻz ʌv ɹoʊtˈeɪʃən ɪz kˈɔːld ðə sˌɛpɚɹˈeɪtɹɪks ɐlˈɔŋ wˌɪtʃ ðɪ ˈæŋɡjʊlɚ vəlˈɑːsᵻɾi pˈæsᵻz θɹuː ðɪ ˈæksɪs ʌv ˌɪntɚmˈiːdiət ɪnˈɜːʃə.
The transition point between two stable axes of rotation is called the separatrix along which the angular velocity passes through the axis of intermediate inertia.