QUADRIENNIAL
\kwˌɒdɹɪˈɛnɪəl], \kwˌɒdɹɪˈɛnɪəl], \k_w_ˌɒ_d_ɹ_ɪ__ˈɛ_n_ɪ__ə_l]\
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.