Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A polysaccharide with the general formula (C6H10O5)n that is found in the roots of various composite plants and yields fructose when hydrolyzed.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a polysaccharide found in the roots and tubers of certain plants, especially the Compositae; it is mostly a polymer of fructose

from the GNU version of the Collaborative International Dictionary of English

  • n. A substance of very wide occurrence. It is found dissolved in the sap of the roots and rhizomes of many composite and other plants, as Inula, Helianthus, Campanula, etc., and is extracted by solution as a tasteless, white, semicrystalline substance, resembling starch, with which it is isomeric, having fructose units in place of most of the glucose units. It is intermediate in nature between starch and sugar, and replaces starch as the reserve food in Compositae. Called also dahlin, helenin, alantin, alant starch, etc.

from The Century Dictionary and Cyclopedia

  • n. A vegetable principle (C6H10O5) which is spontaneously deposited from a decoction of the roots of Inula Helenium and certain other plants.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. used to manufacture fructose and in assessing kidney function

Etymologies

New Latin Inula, plant genus (from Latin inula, elecampane, from Greek helenion; see elecampane) + -in.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Inula +‎ -in (Wiktionary)

Examples

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