SECURENESS
\sɪkjˈʊ͡ənəs], \sɪkjˈʊənəs], \s_ɪ_k_j_ˈʊə_n_ə_s]\
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.