FACIAL ARCH
\fˈe͡ɪʃə͡l ˈɑːt͡ʃ], \fˈeɪʃəl ˈɑːtʃ], \f_ˈeɪ_ʃ_əl ˈɑː_tʃ]\
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.