prion

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++pri·on /ˈpraɪɒn, ˈpriː- $ -ɑːn/ noun [countable]  a very small piece of protein that is thought to cause some brain diseases such as BSE 普里昂，蛋白感染粒，朊病毒〔被认为能导致疯牛病等脑病〕

Examples from the Corpus

prion• There are three human prion diseases and four main prion diseases of animals.• Computer models are used to create three-dimensional models of prions, helping scientists understand the structural transformation they undergo to turn deadly.• A normal gene produces a normal protein, then something goes wrong and the body starts turning out prions.• No one has been able to create purified prions in a system that would rule out the presence of viruses.• Both patients described were heterozygous for the missense mutation at codon 200 of the prion protein gene.• Healthy proteins, which have not met up with prions, reside quietly in the membranes of nerve cells in the brain.Origin prion (1900-2000) proteinaceous “containing protein” ((19-21 centuries)) + infectious particle

pri·on nounChineseSyllable  

piece protein small a of Corpus that very

prion
pri‧on /ˈpraɪɒn, ˈpriː- $ -ɑːn/ noun [countable]a very small piece of protein that is thought to cause some brain diseases such as BSE

prionBrE /ˈpriːɒn/ 🔊NAmE /ˈpriːɑːn/ 🔊 noun (biology 生物) a very small unit of protein that is believed to be the cause of brain diseases such as BSE, CJD and scrapie 普里昂，蛋白质感染粒，朊病毒（能导致脑病）