bicyclic

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English

Etymology

bi- +‎ cyclic

Adjective

bicyclic (not comparable)

  1. Having two cycles.
  2. (chemistry) Having two rings of atoms in the molecule; the rings may be fused, as in naphthalene, or separate, as in biphenyl.
    • 2003, Journal of the American Chemical Society[1], volume 125, page 134:
      [] substitution of a carboxylate would be expected to destabilize the dritterionic mesomer that contributes to the singlet valence bond description as the benzyne geometry becomes more bicyclic.
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Noun

bicyclic (plural bicyclics)

  1. (chemistry) A bicyclic compound.