Chem. [f. ETH- + -ANE.] The paraffin or saturated hydrocarbon, C2 H6, forming the second member of the series Cn H2n+2; also called Ethyl hydride and di-methyl; a colorless inodorous gas.
1873. Watts, Fownes Chem. (ed. 11), 545. We may take the formation of ethane from ethyl iodide. Ibid. (1877), II. 50. Ethane and propane are given off from it [American petroleum] as gas at ordinary temperatures.