[1] : The Collaborative International Dictionary of English v.0.48

methane \meth"ane\, n. see methal. chem.
   a light, colorless, gaseous, inflammable hydrocarbon, ch4;
   marsh gas. it is the simplest of the aliphatic hydrocarbons.
   see marsh gas, under gas.
   1913 webster

   methane series chem., a series of saturated hydrocarbons,
      of which methane is the first member and type, and
      because of their general chemical inertness and
      indifference called also the paraffin little affinity
      series. the lightest members are gases, as methane,
      ethane; intermediate members are liquids, as hexane,
      heptane, etc. found in benzine, kerosene, etc.; while
      the highest members are white, waxy, or fatty solids, as
      paraffin proper.
      1913 webster
see also:
methal ch4 marsh gas gas methane series paraffin little affinity series 

[2] : WordNet (r) 2.0

methane series
     n : a non-aromatic saturated hydrocarbon with the general
         formula cnh2n+2 syn: alkane series, alkane, paraffin
see also:
alkane series alkane paraffin 

Methane >> M Words
Methane, definition of term: Methane
methane_pag1.html

Series >> S Words
Series, definition of term: Series
series_pag1.html

World Series >> W Words
World Series, definition of term: World Series
world+series_pag1.html

Time Series >> T Words
Time Series, definition of term: Time Series
time+series_pag1.html

Actinide Series >> A Words
Actinide Series, definition of term: Actinide Series
actinide+series_pag1.html