an emergency field ration for U.S. armed forces when other food or rations are not available, consisting of three separate packaged meals of concentrated or dehydrated food.
Compare C ration.
Origin of K ration
1940–45; K for Ancel Keys (born 1904), American physiologist
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a small package containing emergency rations used by US and Allied forces in the field in World War II
Word Origin for K ration
C20: K, from the initial of the surname of Ancel Keys (1904–2004), US physiologist who instigated it
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012