The Collaborative International Dictionary of English v.0.48:

alkane series \alkane series\ n. (Chem.)
   a series of acyclic non-aromatic saturated hydrocarbons with
   the general formula CnH(2n+2). They include methane,
   ethane, propane, butane, and the paraffins.

   Syn: methane series, alkane series, paraffin
        [WordNet 1.5 PC]

WordNet (r) 3.0 (2006):

alkane series
    n 1: a series of non-aromatic saturated hydrocarbons with the
         general formula CnH(2n+2) [syn: methane series, alkane
         series, alkane, paraffin series, paraffin]