El·e·cam·pane n.
 1. Bot. A large, coarse herb (Inula Helenium), with composite yellow flowers. The root, which has a pungent taste, is used as a tonic, and was formerly of much repute as a stomachic.
 2. A sweetmeat made from the root of the plant.
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 Hel·e·nin n. Chem. A neutral organic substance found in the root of the elecampane (Inula helenium), and extracted as a white crystalline or oily material, with a slightly bitter taste.
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 Inula helenium
      n : tall coarse Eurasian herb having daisylike yellow flowers
          with narrow petals whose rhizomatous roots are used
          medicinally [syn: elecampane]