CALL-BOARD
\kˈɔːlbˈɔːd], \kˈɔːlbˈɔːd], \k_ˈɔː_l_b_ˈɔː_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.