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1. A process in which olefinic and carbocyclic petroleum products are converted to high-octane branched-chain alkanes in the presence of hydrogen and a catalyst under pressure and heat.
2. A manufacturing technique in which high-pressure hydraulic fluid is used to mold a sheet or tube of metal stock by forcing it against the surface of a die.
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.
1. (Chemistry) the catalytic reforming of petroleum to increase the proportion of aromatic and branched-chain hydrocarbons
2. (General Engineering) engineering a forming process in which a metal component is shaped by a metal punch forced against a die, consisting of a flexible bag containing a fluid
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014