plano-concave

[ pley-noh-kon-keyv, -kon-keyv ]

adjectiveOptics.
  1. pertaining to or noting a lens that is plane on one side and concave on the other.

Origin of plano-concave

1
First recorded in 1685–95; plano-1 + concave

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British Dictionary definitions for plano-concave

plano-concave

/ (ˌpleɪnəʊˈkɒnkeɪv) /


adjective
  1. (of a lens) having one side concave and the other side plane

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012