D defs.my
Entry 1 sense Webster, 1913

Propane

/prō'pān'/ · Pro·pane · IPA /ˈpɹoʊpeɪn/
01 n. A heavy gaseous hydrocarbon, C3H8, of the paraffin series, occurring naturally dissolved in crude petroleum, and also made artificially; --…
  1. 1.
    A heavy gaseous hydrocarbon, C3H8, of the paraffin series, occurring naturally dissolved in crude petroleum, and also made artificially; -- called also propyl hydride.(Chem.) Also: propyl hydride