1. a North American plant with purple or white flowers, commonly used in herbal medicine
2. an herbal supplement made from this plant, believed to boost immune system function
Usage: medicinal

Examples

• The garden was filled with beautiful purple echinacea flowers.
• Many people take echinacea supplements during cold season.
• She planted echinacea in her herb garden for its medicinal properties.
• The pharmacy sells echinacea in both capsule and liquid forms.
• Echinacea is also known as purple coneflower.
• Some studies question the effectiveness of echinacea for preventing colds.
• The echinacea bloomed throughout the summer months.