DEMONSTRATION MICROSCOPE
\dˌɛmənstɹˈe͡ɪʃən mˈa͡ɪkɹəskˌə͡ʊp], \dˌɛmənstɹˈeɪʃən mˈaɪkɹəskˌəʊp], \d_ˌɛ_m_ə_n_s_t_ɹ_ˈeɪ_ʃ_ə_n m_ˈaɪ_k_ɹ_ə_s_k_ˌəʊ_p]\
Word of the day
international pitch
- the pitch used to tune instruments for concert performances; usually assigns 440 Hz A above middle C