Abnormal form of protein believed to cause BSE and Creutzfeldt-Jakob disease (5)

I believe the answer is:

prion

(Other definitions for prion that I've seen before include "See seabird" , "There's no rip, oddly, in the infectious protein particle" , "Protein particle believed to cause BSE" , "cause of infection" .)

I've seen this clue in The Times and The Sunday Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.