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bleaching
This term describes the removal of pigment, whether through intentional chemical application or unintentional environmental stress. In industrial contexts, it carries a neutral or positive connotation of purification and brightness, whereas in biological contexts, such as coral bleaching, it is a sign of severe distress and potential death.
As a noun, the word functions as a gerund describing a process. While it can be used in a general sense to describe the phenomenon, it is typically treated as an uncountable noun when referring to the chemical process or the biological state of an organism.
Meanings
Examples
The dentist explained the risks of teeth bleaching.
We studied the bleaching of ancient papyrus scrolls.
The diver noticed severe bleaching on the reef.
The company faces lawsuits over chemical bleaching methods.
Massive coral bleaching signals a collapsing marine ecosystem.