monoalphabetic substitution

[mon-oh-al-fuh-bet-ik, mon-oh-]

noun Cryptography.

a system of substitution that uses only one cipher alphabet in a cryptogram so that each plaintext letter is always represented by the same cipher.

Nearby words

  1. monnion,
  2. mono,
  3. mono-,
  4. monoacetin,
  5. monoacid,
  6. monoamide,
  7. monoamine,
  8. monoamine oxidase,
  9. monoamine oxidase inhibitor,
  10. monoaminergic


Origin of monoalphabetic substitution

1935–40; mono- + alphabetic

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019