%hecdecane%

n. [ Gr. &unr_; six + &unr_; ten. ] (Chem.) A white, semisolid, spermaceti-like hydrocarbon, C16H34, of the paraffin series, found dissolved as an important ingredient of kerosene, and so called because each molecule has sixteen atoms of carbon; -- called also hexadecane. [ 1913 Webster ]