Pentadecane \Pen`ta*dec"ane\ (p[e^]n`t[.a]*d[e^]k"[=a]n), n.
[Penta- + Gr. de`ka ten.] (Chem.)
A hydrocarbon of the paraffin series, ({C15H32}) found in
petroleum, tar oil, etc., and obtained as a colorless liquid;
-- so called from the fifteen carbon atoms in the molecule.
[1913 Webster]