ALKALI METAL
\ˈalkəlˌa͡ɪ mˈɛtə͡l], \ˈalkəlˌaɪ mˈɛtəl], \ˈa_l_k_ə_l_ˌaɪ m_ˈɛ_t_əl]\
Word of the day
international pitch
- the pitch used to tune instruments for concert performances; usually assigns 440 Hz A above middle C