RADS
Set to 12 different clues across 20 published puzzles, most often “X-ray units” — The New York Times, Sunday, 18 May 2008.
4 letters
Every clue on record, most used first
- X-ray units5 times
The New York Times — Sunday, 18 May 2008
- Dosimeters measure them2 times
The New York Times — Friday, 11 June 2010
- Dosage units2 times
The New York Times — Friday, 19 March 2010
- X-ray doses2 times
The New York Times — Sunday, 25 November 2007
- Physics units2 times
The New York Times — Sunday, 6 December 1998
- X-ray dosage unitsonce
The New York Times — Wednesday, 24 March 2010
- CAT scan unitsonce
The New York Times — Sunday, 10 June 2007
- Physics units also known as centigraysonce
The New York Times — Thursday, 30 November 2006
- Units of 100 ergs per gramonce
The New York Times — Saturday, 10 June 2006
- Exposure unitsonce
The New York Times — Sunday, 14 August 2005
- Units of 100 ergs/gramonce
The New York Times — Saturday, 30 June 2001
- Dangerous dosage unitsonce
The New York Times — Friday, 4 May 2001