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1. Any of a series of boron-hydrogen compounds, especially a reactive gaseous molecule, BH3, that is the simplest binary compound of boron and hydrogen.
2. A derivative of such a compound.
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.


(Elements & Compounds) any compound of boron and hydrogen, used in the synthesis of other boron compounds and as high-energy fuels
[C20: from bor(on) + -ane]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈbɔr eɪn, ˈboʊr-)

any of the compounds of boron and hydrogen.
[< German Boran (1916); see boron, -ane]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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While not yet completely resolved, proponents of boron-based fuels, believe that infrastructure problems are less challenging than with other fuels considered for fuel cell vehicles.
DCX and Millennium Cell also tout the environmental benefits of boron-based fuels. Not using fossil fuels, no greenhouse gas or smog-forming compounds are produced during the generation of hydrogen.