Dictionaryhep•tanePronunciation: (hep'tān), [key] —n. any of nine isomeric hydrocarbons, C7H16, of the alkane series, some of which are obtained from petroleum: used in fuels as solvents, and as chemical intermediates. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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