from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of three colorless, flammable isomeric hydrocarbons, C5H12, derived from petroleum and used as solvents.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An aliphatic hydrocarbon of chemical formula C5H12; either of the three isomers n-pentane, methyl-butane (isopentane), and di-methyl-propane (neopentane); volatile liquids under normal conditions.
from the GNU version of the Collaborative International Dictionary of English
- n. Any one of the three metameric hydrocarbons, C5H12, of the methane or paraffin series. They are colorless, volatile liquids, two of which occur in petroleum. So called because of the five carbon atoms in the molecule.
from The Century Dictionary and Cyclopedia
- n. Amyl hydrid, C5H12, a paraffin hydrocarbon existing in three modifications.
Sorry, no etymologies found.