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radioactivity

noun

ˌreɪ.di.oʊ.ækˈtɪv.ə.ti

Meaning

The emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.

Radioactivity is used in medical treatments like cancer therapy.

radiation, emission, nuclear decay

stability, inertness, non-reactivity

A person who rejects all religious and moral principles, often believing that life is meaningless.

a keyboard musical instrument similar to an organ, using air to produce sound

a group or gathering of witches

the length of time that something continues

The sequence of processes through which a piece of work passes from initiation to completion.

a landing stage or small pier at which boats can dock or be moored