Creosote

Webster's Practical Dictionary- A Practical Dictionary of the Englih Language · 1884 · p. 100

kre'o-sot, n. (Chem.) An oily, colorle liquid, having the smell of smoke, and strong septic properties, obtained from distillation of Crepitate, krep'T-tat, v. i. To burst with a sound, crackle, snap. Crept. See Creep.