OPEN-AND-SHUT
\ˈə͡ʊpənandʃˈʌt], \ˈəʊpənandʃˈʌt], \ˈəʊ_p_ə_n_a_n_d_ʃ_ˈʌ_t]\
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.