SIXTH CRUSADE
\sˈɪksθ kɹuːsˈe͡ɪd], \sˈɪksθ kɹuːsˈeɪd], \s_ˈɪ_k_s_θ k_ɹ_uː_s_ˈeɪ_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.