Definition of planoconvex in English:

planoconvex

adjective

  • (of a lens) with one surface plane and the opposite one convex.

    • ‘Here is a diagram of light passing through the curved edge of a planoconvex lens.’
    • ‘Radiation characteristics of a plano-convex lens are studied using Maslov's method, stressing the evaluation of an electromagnetic field around a caustic region when a uniform plane wave is incident axially to the flat plate side.’

Pronunciation:

planoconvex

/ˌpleɪnəʊˈkɒnvɛks/