ir·i·des·cent

[ir-i-des-uhnt]
adjective
1.
displaying a play of lustrous colors like those of the rainbow.
noun
2.
an iridescent cloth, material, or other substance: new fall dresses of imported iridescents.

Origin:
1790–1800; irid- + -escent

ir·i·des·cent·ly, adverb
non·ir·i·des·cent, adjective
non·ir·i·des·cent·ly, adverb
un·ir·i·des·cent, adjective
un·ir·i·des·cent·ly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
iridescent (ˌɪrɪˈdɛsənt) [Click for IPA pronunciation guide]
 
adj
displaying a spectrum of colours that shimmer and change due to interference and scattering as the observer's position changes
 
[C18: from irido- + -escent]
 
iri'descence
 
n
 
iri'descently
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
00:10
Iridescent is always a great word to know.
So is lollapalooza. Does it mean:
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
Etymonline
Word Origin & History

iridescent
1796, coined from L. iris (gen. iridis) "rainbow" (see iris).
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
Example sentences
Its iridescent rings are not those of a rainbow but of a different and more
  subtle effect called a glory.
One can't help exclaiming in awe, since the colored bone is as delicate and
  lacily beautiful as a dragonfly's iridescent wing.
Herds of iridescent parrotfish darted through forests of branching corals.
The iridescent breastplate of the blue bird of paradise glows among intact
  parrots.
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