from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Any of various isomeric alkanes with the formula C8H18, found in petroleum and used as a fuel and solvent.
- noun An octane number.
from The Century Dictionary.
- noun An oily hydrocarbon, C8H18, of the paraffin series. It occurs in petroleum, and is one of the chief constituents of ligroin. It boils at 124° C. The name is sometimes given to diisobutyl (C8H18).
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) Any one of a group of metametric hydrocarbons (C8H18) of the methane (paraffin) series. The most important is a colorless, volatile, inflammable liquid, found in petroleum, and a constituent of gasoline or ligroin.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun chemistry Any of the eighteen
isomeric aliphatic hydrocarbons(C8H18) found in petroleum, especially an iso-octane2,2,4 trimethyl-pentane; they are used as fuelsand solvents.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun any isomeric saturated hydrocarbon found in petroleum and used as a fuel and solvent
from Wiktionary, Creative Commons Attribution/Share-Alike License
octo- + -ane
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