radioactive
Translation
radioactive
Examples
Radioactive waste must be stored safely.
Radioactive waste must be stored safely.
The area was contaminated with radioactive material.
The area was contaminated with radioactive material.
Grammar Patterns
((radioactive)) ((noun)) emitting radiation The area was contaminated with radioactive material.
Similar Words
Synonyms: radiant, emitting radiation; Antonyms: stable, non-radioactive
Etymology
From Latin 'radius' (ray) and 'activus' (active). Meaning 'active with rays'.
Memory Tips
Imagine a 'radio' being 'active' and sending out invisible, powerful signals (rays).