prion

noun pree-OHN Rare

Origin: Coined 1982 by Stanley Prusiner from 'proteinaceous infectious particle'

Usage Note

Prion refers to the misfolded protein particle responsible for neurodegenerative diseases such as Creutzfeldt-Jakob disease and bovine spongiform encephalopathy (BSE). The word is the same in French and English. In French it is masculine — un prion.

Examples

"La maladie est causée par des prions."

Natural Translation

The disease is caused by prions.

Related Words

Explore French by topic

FrenchNow

Passé Composé vs Imparfait: When to Use Each

Passé composé tells the story; imparfait paints the scene. Use this 2-second flowchart, trigger words, and paired examples to pick the right French tense.

June 3, 2026 6 min read

FrenchNow

French Noun Gender: Rules to Guess Right 80%

Guess French noun gender right 80% of the time using word endings: -age, -ment, -eau are masculine; -tion, -té, -ette are feminine. A high-yield system.

June 3, 2026 5 min read

FrenchNow

French Numbers 70, 80, 90 Made Simple

French numbers 70, 80, 90 are soixante-dix, quatre-vingts, and quatre-vingt-dix. Learn three build formulas to make any number 70-99 on the fly.

June 3, 2026 5 min read

FrenchNow

Sorry in French: Désolé vs Pardon vs Excusez-moi

Use désolé for genuine regret, pardon to bump or squeeze past, and excusez-moi to get attention. A situation-by-situation guide to saying sorry in French.

June 4, 2026 5 min read