FIBRIN
Set to 2 different clues across 2 published puzzles, most often “Coagulation protein” — The New York Times, Sunday, 16 August 1998.
6 letters
Every clue on record, most used first
- Coagulation proteinonce
The New York Times — Sunday, 16 August 1998
- Coagulating proteinonce
The New York Times — Saturday, 5 August 1995