Creosote /(krē"ō̇*sōt)/

Cre·o·sote

Creosote

n.
  1. Wood-tar oil; an oily antiseptic liquid, of a burning smoky taste, colorless when pure, but usually colored yellow or brown by impurity or exposure. It is a complex mixture of various phenols and their ethers, and is obtained by the distillation of wood tar, especially that of beechwood. (Chem.)

Phrases & Compounds
Coal-tar creosote
a colorless or yellow, oily liquid, obtained in the distillation of coal tar, and resembling wood-tar oil, or creosote proper, in composition and properties.

Creosote

v. t.

imp. & p. p. Creosoted; p. pr. & vb. n. Creosoting

  1. To saturate or impregnate with creosote, as timber, for the prevention of decay.