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An emergency field ration for US armed forces in World War II, consisting of a single packaged meal.
[After Ancel Benjamin Keys (1904-2004), American physiologist.]
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.
(Military) a small package containing emergency rations used by US and Allied forces in the field in World War II
[C20: K, from the initial of the surname of Ancel Keys (1904–2004), US physiologist who instigated it]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
an emergency military field ration for use under combat conditions, consisting of three separate packaged meals. Compare C ration.
[1940–45; K for Ancel Keys (born 1904), U.S. physiologist]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.