from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The organic compound 2-methylbut-1-en-3-yne HC≡C-C(CH3)=CH2

from the GNU version of the Collaborative International Dictionary of English

  • n. A volatile liquid hydrocarbon, C5H6, related to ethylene and acetylene, but possessing the property of unsaturation in the third degree. It is the only known member of a distinct series of compounds. It has a garlic odor.

from The Century Dictionary and Cyclopedia

  • n. A colorless, oily compound, prepared by the action of alcoholic potassium hydroxid on valerylenedibromide. It has an odor of garlic and boils at 50° C.


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