PROFIT SYSTEM
\pɹˈɒfɪt sˈɪstəm], \pɹˈɒfɪt sˈɪstəm], \p_ɹ_ˈɒ_f_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.