pri·on /ˈpriˌɑn/
  pri·on /ˈprɪˌɑn/ 名詞
  蛋白黴傳染性因子,蛋白黴感染性初級子,蛋白感染素(僅由蛋白質構成的感染物)
  prion
       n : (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