DUPLEX PLACENTA
\djˈuːplɛks pləsˈɛntə], \djˈuːplɛks pləsˈɛntə], \d_j_ˈuː_p_l_ɛ_k_s p_l_ə_s_ˈɛ_n_t_ə]\
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.