A class of [[liquid]] [[chemicals]] that have certain combinations of [[hydrogen]], [[carbon]] and [[oxygen]], and that are capable of being used as [[fuel]].<ref>http://www.energy.ca.gov/glossary/glossary-a.html#a</ref>
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'''Alcohol''' is a class of [[liquid]] [[chemicals]] that have certain combinations of [[hydrogen]], [[carbon]] and [[oxygen]], and that are capable of being used as [[fuel]].<ref>http://www.energy.ca.gov/glossary/glossary-a.html#a</ref>