PLANOCONVEX LENS
\plˈanəkˌɒnvɛks lˈɛnz], \plˈanəkˌɒnvɛks lˈɛnz], \p_l_ˈa_n_ə_k_ˌɒ_n_v_ɛ_k_s l_ˈɛ_n_z]\
Word of the day
Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.