iridescent

adj. colorful, shining with all the colors of the rainbow

Iridescence is an optical phenomenon characterized as the property of surfaces in which hue changes according to the angle from which the surface is viewed (as may be seen of soap bubbles and butterfly wings).Iridescence is caused by multiple reflections from multi-layered, semi-transparent surfaces in which phase shift and interference of the reflections modulates the incident light (by amplifying or attenuating some frequencies more than others). This process is the functional analog of selective wavelength attenuation as seen with the Fabry-Pérot interferometer.
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Adjective
1. varying in color when seen in different lights or from different angles; "changeable taffeta"; "chatoyant (or shot) silk"; "a dragonfly hovered, vibrating and iridescent"
(synonym) changeable, chatoyant, shot
(similar) colorful, colourful
2. having a play of lustrous rainbow-like colors; "an iridescent oil slick"; "nacreous (or pearlescent) clouds looking like mother-of-pearl"; "a milky opalescent (or opaline) luster"
(synonym) nacreous, opalescent, opaline, pearlescent
(similar) bright

adj. iridescent, colorful, shining with all the colors of the rainbow

n. iridescence, colorful radiance, rainbow colored display

(a.)
Having colors like the rainbow; exhibiting a play of changeable colors; nacreous; prismatic; as, iridescent glass.