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# potassium

noun (potassium, uncountable)

«potassium» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. Potassium is a soft, silvery chemical element, a metal, with the symbol K. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/potassium/#m1)
2. Potassium is also a mineral the body needs to keep the heart, muscles and nerves working, found in foods like bananas, potatoes and beans. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/potassium/#m2)

### In the lessons

In science lessons, potassium reacts very strongly with water, fizzing and catching fire with a lilac flame, so it is kept under oil; only teachers handle it. In health and food lessons, bananas are famous for potassium. In gardening, plants need potassium from fertiliser to flower and fruit. Phrases: «rich in potassium», «potassium chloride».

### Examples

- Bananas are a good source of potassium. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/potassium/#x1)
- Potassium has the chemical symbol K. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/potassium/#x2)
- The teacher dropped a tiny piece of potassium in water, and it burst into lilac flames. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/potassium/#x3)
- Our bodies need potassium for healthy muscles. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/potassium/#x4)
- Potassium is stored under oil because it reacts with air and water. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/potassium/#x5)
- Tomato feed is rich in potassium. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/potassium/#x6)

### Note

Uncountable. The symbol K comes from its Latin name «kalium», a trap in science tests. Pronounced «po-TASS-ee-um». Safety: never handle pure potassium yourself.

## On Mova

- [Trees and pragmatics of «potassium» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/potassium/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«potassium» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/potassium.html) on Mova free.