ScienceAugust 17, 2026

radionuclides

RAY-dee-oh-NEW-klydz

Definition

Unstable atoms that emit radiation; in this context, the specific radioactive particles measured in the marine environment near nuclear power plants.

Etymology

The word is a portmanteau of 'radioactive' (from Latin 'radius') and 'nuclide' (derived from 'nucleus'). It was coined in the 20th century to specifically categorize atoms that possess excess nuclear energy.

In the news

The term is used to describe the specific radioactive substances identified by STUK in the marine environment near nuclear facilities, confirming that emissions remain at safe, expected levels.

Radiation situation in Finland remains stable, safe in 2025: STUK

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Daily Finland

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