CONCAVOCONVEX LENS
\kənkˈavəkˌɒnvɛks lˈɛnz], \kənkˈavəkˌɒnvɛks lˈɛnz], \k_ə_n_k_ˈa_v_ə_k_ˌɒ_n_v_ɛ_k_s l_ˈɛ_n_z]\
Word of the day
Mustagh Range
- a mountain range in northern Kashmir; an extension of the Hindu Kush; contains 2nd highest peak