Plural of dayglow; multiple instances or products featuring dayglow coloring or technology.
Plural form of the trademark 'dayglow,' treating the brand name as a common noun when referring to multiple dayglow-colored items.
Once a trademarked brand, 'dayglow' became so common that people use it generically now—similar to how people say 'kleenex' for any tissue, showing how successful marketing can change language itself.
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