Showing shifting, rainbow-like colors that change depending on the angle of light.
“The surface is iridescent, shifting between blue and green depending on the light.”
“It has an iridescent shine, almost like a soap bubble.”
This is an impressive vocabulary word for Task 8 when the object has a shiny, color-shifting surface, like a soap bubble or seashell. Use it to explain that the color seems to change as you move or tilt the object, for example 'it's iridescent, so it looks purple from one angle and green from another.' Practice the pronunciation before the exam.
Synonyms: shimmering, opalescent, color-shifting