RIBBED VAULT
\ɹˈɪbd vˈɒlt], \ɹˈɪbd vˈɒlt], \ɹ_ˈɪ_b_d v_ˈɒ_l_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.