cubic zirconia: Meaning and Definition of

cu'bic zir•co'ni•a

Pronunciation: (zûr-kō'nē-u), [key]
— pl. -ni•as.
  1. an artificial crystal resembling a diamond in refraction, dispersion, hardness, and color, used in jewelry. Abbr.: CZ Sometimes,
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.