1. a yellow crystalline compound found in plants that acts as an antioxidant and has anti-inflammatory properties
Usage: biochemistry; nutrition

Examples

• Quercetin is abundant in onions, apples, and berries.
• The supplement contained 500 mg of quercetin per capsule.
• Researchers studied quercetin’s potential benefits for heart health.
• Red wine contains quercetin from grape skins.
• The lab isolated quercetin from the plant extract.
• Many people take quercetin supplements during allergy season.