HISTORY DEPARTMENT
\hˈɪstəɹˌi dɪpˈɑːtmənt], \hˈɪstəɹˌi dɪpˈɑːtmənt], \h_ˈɪ_s_t_ə_ɹ_ˌi d_ɪ_p_ˈɑː_t_m_ə_n_t]\
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Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.