GNU Collaborative International Dictionary of English

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1.       
   Nonane (?), n. [L. nonus ninth.] (Chem.) One of a group of metameric hydrocarbons C9H20 of the paraffin series; -- so called because of the nine carbon atoms in the molecule. Normal nonane is a colorless volatile liquid, an ingredient of ordinary kerosene.
   
   [1913 Webster]