billon
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bil·lon
(bĭl′ən)n.
1. An alloy of gold or silver with a greater proportion of another metal, such as copper, used in making coins.
2. An alloy of silver with a high percentage of copper, used in making medals and tokens.
[French, from Old French, ingot, from bille, log; see billet2.]
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.
billon
(ˈbɪlən)n
1. (Metallurgy) an alloy consisting of gold or silver and a base metal, usually copper, used esp for coinage
2. (Metallurgy) any coin made of such an alloy
[C18: from Old French: ingot, from bille log; see billet2]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
bil•lon
(ˈbɪl ən)n.
1. an alloy of gold or silver with a larger amount of base metal, esp. copper.
2. an alloy of silver with copper, used for coins of small denomination.
[1720–30; < French: debased metal]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.