- displaying a play of lustrous colors like those of the rainbow.
- an iridescent cloth, material, or other substance: new fall dresses of imported iridescents.
Origin of iridescent
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- displaying a spectrum of colours that shimmer and change due to interference and scattering as the observer's position changes
Word Origin for iridescent
C18: from irido- + -escent
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
1796, literally "rainbow-colored," coined from comb. form of Latin iris (genitive iridis) "rainbow" (see iris). Related: Iridescently.
Online Etymology Dictionary, © 2010 Douglas Harper