Meaning of plano-convex

pla•no-con•vex

Pronunciation: (plā"nō-kon'veks, -kon-veks', -kun-), [key]
— adj. Optics.
  1. pertaining to or noting a lens that is plane on one side and convex on the other. See diag. under
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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