APPOINTMENT BOOK
\ɐpˈɔ͡ɪntmənt bˈʊk], \ɐpˈɔɪntmənt bˈʊk], \ɐ_p_ˈɔɪ_n_t_m_ə_n_t b_ˈʊ_k]\
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.