tetramethylene

/T EH0 T R AH0 M EH1 TH AH0 L IY0 N/
noun
  1. 1

    (chemistry) An isomeric radical used to designate certain compounds which are really related to butylene.

  2. 2

    (organic chemistry) A hypothetical hydrocarbon, Cโ‚„Hโ‚ˆ, analogous to trimethylene, and regarded as the base of well-known series or derivatives.