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

  • n. A colorless organic liquid, C9H8, obtained from coal tar and used in preparing synthetic resins.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The bicyclic hydrocarbon consisting of a benzene ring fused to one of cyclopentadiene.

from The Century Dictionary and Cyclopedia

  • n. A colorless viscid liquid, , found in coal-tar oil. It boils at 179.5–180.5° C.

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

  • n. a colorless liquid hydrocarbon extracted from petroleum or coal tar and used in making synthetic resins


ind(ole) + -ene.
(American Heritage® Dictionary of the English Language, Fourth Edition)


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