1. a substance or product that adds or restores moisture to skin, hair, or other materials
Usage: commonly used in cosmetics and skincare contexts
2. a device or system that adds water or moisture to air or a substance
Usage: technical or industrial use

Examples

• She applied a facial hydrator before bed to keep her skin soft.
• This moisturizing hydrator contains hyaluronic acid for deep hydration.
• The hair hydrator helped restore shine to her dry, damaged locks.
• The industrial hydrator ensures the warehouse maintains proper humidity levels.
• I use a hydrator every morning as part of my skincare routine.
• This lightweight hydrator absorbs quickly without leaving a greasy residue.