Definition of echinacea
: the dried rhizome, roots, or other parts of any of three purple coneflowers that are used primarily in dietary supplements and herbal remedies for the stimulating effect they are held to have on the immune system; also : any of these herbs
Recent Examples of echinacea from the Web
More than 100 hosta varieties, as well as everything from zinnias to peonies and aloe vera to echinacea.
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Origin and Etymology of echinacea
New Latin, genus name, from echin- + -acea (feminine of -aceus -aceous)
First Known Use: circa 1859See Words from the same year
Medical Definition of echinacea
: the dried rhizome, roots, or other part of any of three composite herbs (Echinacea angustifolia, E. pallida, and E. purpurea) that were formerly listed in the United States Pharmacopeia, that are now used primarily in dietary supplements and herbal remedies, and that are held to stimulate the immune system; also : any of these herbs—see purple coneflower
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