What is meant by a misfolded protein for prions
Please find below the answer:
A prion is a microscopic, infectious protein particle similar to a virus that lacks DNA or RNA. It is an external agent which when enters our body causes many disease.
A prion is also referred to as a misfolded protein (folding which is different or not normal) which has the tendency to pass this misfolded shape to normal variants of the same protein.
Hope this clears your doubt.