Meaning of isobutane

i•so•bu•tane

Pronunciation: (ī"su-by'tān, -by-tān'), [key]
— n. Chem.
  1. a colorless, flammable gas, CH, used as a fuel, as a refrigerant, and in the manufacture of gasoline by alkylation.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.