color change

American  

[kuhl-er chaynj] / ˈkʌl ər ˌtʃeɪndʒ /

noun

1. Chemistry. a property of color transformation characteristic of a substance that is undergoing or has undergone a chemical reaction, the process or formation of which is an important indicator in the chemical analysis of that substance.

2. Zoology. a natural transformation in the color of an animal's skin, fur, feathers, etc., for such purposes as camouflage, attracting a mate, or signaling a warning.

3. Philately. a change in the coloration or color scheme of a postage stamp, the doing of which may be authorized, inadvertent, or fraudulent.

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Example Sentences

His PhD, at Harvard, focused on the timing of new leaves on trees in the spring and color change in the fall.

From Los Angeles Times

A subtle color change also restored the appearance of the neoclassical “New Room,” which Washington added in the 1770s and ’80s as a grand space for entertaining, displaying art, making a statement.

From The Wall Street Journal

Chameleons inhabit parts of Africa, Europe and Asia, and their remarkable adaptations go far beyond color change.

From Science Daily

While the color of fresh olive oil does not connote quality, the color change as it sits on a shelf does.

From Salon

Excess ingestion may, however, cause urinary and fecal color change.

From Salon