from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of very many isomeric saturated aliphatic hydrocarbons having fifteen carbon atoms; but especially n-pentadecane, CH3(CH2)13CH3
from the GNU version of the Collaborative International Dictionary of English
- n. 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.
from The Century Dictionary and Cyclopedia
- n. A hydrocarbon, C15H32, of the paraffin series. Normal pentadecane melts at 10° C., yielding an oily liquid which boils at 270.5° C. It is made synthetically.
Sorry, no etymologies found.