Dictionary
bu•tane
Pronunciation: (byOO'tān, byOO-tān'), [key]—
n. Chem.
a colorless, flammable gas, C
4H
10, a saturated aliphatic existing in two isometric forms: used chiefly in the manufacture of rubber and as fuel.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.