OBSTACLE RACE
\ˈɒbstəkə͡l ɹˈe͡ɪs], \ˈɒbstəkəl ɹˈeɪs], \ˈɒ_b_s_t_ə_k_əl ɹ_ˈeɪ_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.