ANGLE OF ELEVATION

\ˈaŋɡə͡l ɒv ˌɛlɪvˈe͡ɪʃən], \ˈaŋɡə‍l ɒv ˌɛlɪvˈe‍ɪʃən], \ˈa_ŋ_ɡ_əl ɒ_v ˌɛ_l_ɪ_v_ˈeɪ_ʃ_ə_n]\
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1898 - American pocket medical dictionary
By Willam Alexander Newman Dorland