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

adjective Optics.

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

Origin of plano-concave

First recorded in 1685–95; plano-1 + concave Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for plano-concave

Historical Examples of plano-concave

British Dictionary definitions for plano-concave



(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