butane

 
Pronunciation: /ˈbjuːteɪn/

noun

[mass noun] Chemistry
  • a flammable hydrocarbon gas of the alkane series, present in petroleum and natural gas. It is used in bottled form as a fuel. See also isobutane.
    • Chemical formula: CH3CH2CH2CH3

Origin:

late 19th century: from butyl + -ane2