n. A stearoptene from Inula helenium; it is used as an internal and external antiseptic.
the GNU version of the Collaborative International Dictionary of English
n. 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.
The Century Dictionary and Cyclopedia
n. A substance (C6H8O) derived from the root of Inula helenium, or elecampane, by the action of alcohol. It crystallizes in white prisms which have a bitter taste.
Word Usage
"Inulin is allied to starch, and its crystallized camphor is separable into true helenin, and alantin camphor."