EXTENSION COURSE
\ɛkstˈɛnʃən kˈɔːs], \ɛkstˈɛnʃən kˈɔːs], \ɛ_k_s_t_ˈɛ_n_ʃ_ə_n k_ˈɔː_s]\
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.