This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. A microscopic protein particle similar to a virus but lacking nucleic acid, thought to be the infectious agent responsible for scrapie and certain other degenerative diseases of the nervous system.

n. A petrel of the genus Pachyptila.

n. A self-propagating misfolded conformer of a protein that is responsible for a number of diseases that affect the brain and other neural tissue.

n. any of several types of protein particle lacking nucleic acid, believed to be the cause of certain slow-developing infectious diseases such as scapie in sheep, and Creutzfeldt-Jakob disease and Kuru in humans.

n. A genus of Procellariidæ, having the bill expanded and strongly beset along the cutting edges with lamellæ like the teeth of a saw; the saw-billed petrels. P. vittata is a blue-and-white petrel inhabiting southern seas. Also Pachyptila.

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

"You say she disputed the name prion because it did not behave as a protein under radiation."

particle    subatomic particle   

New Variant Cruetzfeldt-Jakob Disease    Creutzfeldt-Jakob disease    virus    mad cow disease    viroid    kuru    cannibalism    bovine spongiform encephalopathy    scrapie   

fibrosarcoma    hematopoiesis    filoviral    ribosome-inactivating    schistosomiasis    neurodegenerative    cdna    Corn Law    heterologous    howmuch