echinacea [ˌɛkɪˈneɪʃɪə]
n
1. (Life Sciences & Allied Applications / Plants) either of the two N American plants of the genus
Echinacea, having flower heads with purple rays and black centres: family
Compositae (composites) Also called
purple coneflower See
coneflower
2. (Life Sciences & Allied Applications / Plants) the powdered root of either of these plants, used to stimulate the immune system
[from New Latin, from Latin
echīnātus prickly, from
echīnus hedgehog
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