Iridescence
This noun refers to the rainbow-like shimmer that seems to change depending on the angle of light. These can be spotted on soap bubbles, mother-of-pearls, fish scales etc.
Origin
The word iridescence has Greek origins. Iris is the Greek goddess of the rainbow. She is said to use the rainbow as a stairway while travelling. The Latin suffixes cent, means “have the tendency to”.
Example
The iridescence gave the shell an ethereal quality.
Picture Credit : Google