PRECESSION
\pɹɪsˈɛʃən], \pɹɪsˈɛʃən], \p_ɹ_ɪ_s_ˈɛ_ʃ_ə_n]\
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By William Hand Browne, Samuel Stehman Haldeman
Word of the day
international pitch
- the pitch used to tune instruments for concert performances; usually assigns 440 Hz A above middle C