BATTEN DOWN
\bˈatən dˈa͡ʊn], \bˈatən dˈaʊn], \b_ˈa_t_ə_n d_ˈaʊ_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.