from The Century Dictionary.

  • noun In organic chemistry, a hypothetical hydrocarbon, C4H4, of which some derivatives are known.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Chem.) A hypothetical hydrocarbon, C4H4, analogous to benzene; -- so called from the four carbon atoms in the molecule.
  • noun [Obs.] furfuran.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun organic chemistry, especially in combination Any polyhydric alcohol having four hydroxyl groups


Sorry, no etymologies found.


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  • “I can’t be certain, but as far as I can see the explosive was either amatol or tetrol.

    The Fashion in Shrouds Allingham, Margery, 1904-1966 1931


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