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from The Century Dictionary and Cyclopedia

  • n. An acrid oil obtained by pressure from the flower-heads of the hop, Humulus Lupulus.


Sorry, no etymologies found.


  • On the other hand, we can allow hop-oil to stand for days without its odor being perceptibly changed; it appears to me more than probable that the peculiar smell of old hops is due far more to the oxidation of the bitter substance than to the oxidation of oil.

    Scientific American Supplement, No. 447, July 26, 1884


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