PERMEABILITY
\pˌɜːməbˈɪlɪti], \pˌɜːməbˈɪlɪti], \p_ˌɜː_m_ə_b_ˈɪ_l_ɪ_t_i]\
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By Princeton University
By DataStellar Co., Ltd
By Noah Webster.
Word of the day
international pitch
- the pitch used to tune instruments for concert performances; usually assigns 440 Hz A above middle C