PRION as NOUN

1. Meaning
   • (microbiology) an infectious protein particle similar to a virus but lacking nucleic acid
   • thought to be the agent responsible for scrapie and other degenerative diseases of the nervous system
   Hypernyms(s) prion is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • particle (what does particle mean?)