First Known Use: 1943
Dictionary
cryptarithm
noun cryp·ta·rithm \ˈkrip-tə-ˌri-thəm\
Definition of CRYPTARITHM
: an arithmetic problem in which letters have been substituted for numbers and which is solved by finding all possible pairings of digits with letters that produce a numerically correct answer
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Origin of CRYPTARITHM
crypt- + -arithm (as in logarithm)
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