cyclicalcipher
nounUK /ˈsaɪ.klɪ.kəlˌsaɪ.fər/
US /ˈsaɪ.klɪ.kəlˌsaɪ.fɚ/
A cyclical cipher is a secret code that repeats its pattern over and over.
The spy used a cyclical cipher so the same letter never looked the same twice in a row.
OTHER MEANINGS
2. A cipher whose alphabet shifts in a repeating cycle, such as a rotating Caesar wheel.
The cyclical cipher shifted each letter by one more step until it wrapped back to the start.
3. A coding method used in puzzles where the key repeats after a fixed number of letters.
She cracked the cyclical cipher by noticing the key repeated every five letters.
4. Any encoding scheme that loops through a fixed sequence of symbols.
The toy used a cyclical cipher to turn numbers into colored lights.