DRAWING PIN
\dɹˈɔːɪŋ pˈɪn], \dɹˈɔːɪŋ pˈɪn], \d_ɹ_ˈɔː_ɪ_ŋ p_ˈɪ_n]\
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.