probably alteration of C ration, but taken as initial of Ancel B. Keys †2004 American physiologist
circa 1940, in the meaning defined above
krater
K ration
kratochvilite
“K ration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/K%20ration. Accessed 28 Nov. 2024.
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