irisation

The soap bubble shows a beautiful irisation in the sunlight.

Definition

1. Noun:
   • The phenomenon of displaying rainbow-like colors: "irisation" refers to the optical effect where surfaces or thin films show shifting, iridescent colors, often due to interference of light waves. This is commonly seen in soap bubbles, oil slicks, or certain minerals.

Usage Examples

• (The rainbow-like display on the bubble's surface.)
• (The play of colors caused by light interference.)

Advanced Usage

• "irisation effect": a descriptive term used in physics or art to refer to the spectral color display.
  • The artist captured the irisation effect in the painting by layering translucent glazes. (The rainbow play of light was mimicked through technique.)

Variants and Related Words

• Iridescent (adj): having or showing irisation; displaying shifting rainbow colors.

  • The iridescent wings of the butterfly shimmered in the sunlight. (The wings showed irisation.)

• Iridescence (n): the quality or state of being iridescent; the phenomenon of irisation.

  • The iridescence of the oil slick spread across the puddle. (The rainbow colors appeared due to irisation.)

Synonyms

• Rainbow-like display: a show of colors resembling a rainbow.
• Spectral colors: colors produced by dispersion of light.

Related Idioms

Phrasal Verbs