prion.
A self-propagating misfolded conformer of a protein that is responsible for a number of diseases that affect the brain and other neural tissue.
Meaning & usage
A self-propagating misfolded conformer of a protein that is responsible for a number of diseases that affect the brain and other neural tissue.
Where this word comes from
From (a reordering of) the initial letters of proteinaceous infectious particle. Coined by American neurologist and biochemist Stanley B. Prusiner in 1982.
A petrel of the genera Pachyptila and Halobaena.
Where this word comes from
From Prion (former genus name), from Ancient Greek πρίων (príōn, “saw”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.