potassium

/pəˈtæsiəm/

Proposed by a contributor, not yet supported by evidence.

Also seen as: potassiums

Sense 1

Meaning · English

A soft, waxy, silvery reactive metal that is never found unbound in nature; an element with atomic number 19 and atomic weight of 39.0983.

Noun

Examples

We all need potassium, and green vegetables are a good source.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Sense 2

Meaning · English

An atom of this element.

Noun

Examples

This reaction substitutes a potassium for a sodium.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Common questions

What does “potassium” mean?

A soft, waxy, silvery reactive metal that is never found unbound in nature; an element with atomic number 19 and atomic weight of 39.0983.

Is “potassium” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.