PLANO-CONVEX Meaning of PLANO-CONVEX in English plano-convex BrE AmE ˌpleɪn əʊ ˈkɒn veks ◂ ˌ•••ˈ• AmE \ -oʊ ˈkɑːn- Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012