RUBDOWN
\ɹˈʌbda͡ʊn], \ɹˈʌbdaʊn], \ɹ_ˈʌ_b_d_aʊ_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.