NOMINAL HEAD
\nˈɒmɪnə͡l hˈɛd], \nˈɒmɪnəl hˈɛd], \n_ˈɒ_m_ɪ_n_əl h_ˈɛ_d]\
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.