ENTROPY
Set to 3 different clues across 4 published puzzles, most often “Tendency toward chaos” — The New York Times, Friday, 29 February 2008.
7 letters
Every clue on record, most used first
- Tendency toward chaos2 times
The New York Times — Friday, 29 February 2008
- Chaosonce
The New York Times — Saturday, 21 July 2007
- Degree of randomness, in scienceonce
The New York Times — Thursday, 15 May 1997