1. Plural of hydroquinone; organic compounds with two hydroxyl groups attached to a benzene ring, used in photography, cosmetics, and industrial applications.
Usage: chemistry; technical

Examples

• Hydroquinones are commonly used as developing agents in black-and-white photography.
• The cosmetic industry uses hydroquinones in skin-lightening products.
• Hydroquinones act as reducing agents in various chemical reactions.
• Some hydroquinones are used as antioxidants in rubber and plastic manufacturing.
• The chemist synthesized several hydroquinones for the laboratory experiment.