Definition

A type of atom that is unstable and emits radiation as it breaks down.

Example

Scientists study radionuclides to understand their effects on health and the environment.

Conversation

Have you ever heard of a radionuclide?

Yeah, I think it's something that emits radiation, right?

Exactly! It's fascinating how they can be used in medicine.

For sure! They play a huge role in medical imaging and treatments.

Synonyms & Antonyms

Root Explanation

Radionuclide → It is formed from "radio-" (from Latin *radius*, meaning ray) and "nuclide" (from Latin *nucleus*, meaning kernel or core). The term refers to a type of atom (nuclide) that emits radiation (ray).

Memory Tip

Think of 'ray' ('radio-') coming from the 'core' ('nuclide') of an atom — that's why radionuclides are atoms that emit rays.

Visually Confused Words