Radioactif

Part of Speech

adjective

Difficulty Level

Translations

🇩🇪 kontaminiert durch radioaktive Aktivität , 🇪🇸 contaminado por la actividad radioactiva , 🇮🇹 contaminato dall’attività radioattiva , 🇵🇹 contaminado pela atividade radioativa , 🇨🇳 放射性的 , 🇯🇵 放射能活動によって汚染された , 🇰🇷 방사능 활동에 의해 오염된 , 🇸🇦 متلوث بالنشاط الإشعاعي , 🇮🇳 रेडियोधर्मी गतिविधि से दूषित

Definition

Usage Examples

Etymology

The adjective **radioactif** is a 20th‑century French coinage built from the prefix **radio‑** (from Greek *rádios* “ray, beam”, through Latin *radiātor* “radiating”) plus the French **actif**, derived from Latin *activus* “active, doing”. It literally means “radiating activity”, used to describe matter that emits ionising radiation. The term entered scientific vocabulary in the early 1900s as the study of radioactivity developed.

Synonyms

irradié contaminé exposé aux radiations exposé aux rayonnements exposé aux rayons ionisants exposé aux rayonnements ionisants exposé aux rayons X

Antonyms

non-radioactif stable inerte inactif sûr