bu·tane (byo?o?t?n?)n. Either of two isomers of a gaseous hydrocarbon, C4H10, produced synthetically from petroleum and used as a household fuel, refrigerant, and aerosol propellant and in the manufacture of synthetic rubber.[but(yl) + -ane.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.butane (?bju?te?n; bju??te?n) n (Elements & Compounds) a colourless flammable gaseous alkane that exists in two isomeric forms, both of which occur in natural gas. The stable isomer, n-butane, is used mainly in the manufacture of rubber and fuels (such as Calor Gas). Formula: C4H10[C19: from but(yl) + -ane]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014bu?tane (?byu te?n, byu?te?n) n. a colorless, flammable gas, C4H10, used chiefly in the manufacture of rubber and as fuel. [1870?75] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.bu·tane (byo?o?t?n?) An organic compound, C4H10, found in natural gas and produced from petroleum. Butane is used as a fuel, refrigerant, and propellant in aerosol cans.butyl (byo?o?t?l) adjectiveThe American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.