CREDIT SYSTEM
\kɹˈɛdɪt sˈɪstəm], \kɹˈɛdɪt sˈɪstəm], \k_ɹ_ˈɛ_d_ɪ_t s_ˈɪ_s_t_ə_m]\
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.