Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “potassium”

See all translations


noun [U] uk   /pəˈtæs.i.əm/ ( symbol K) us  
a silver-white chemical element that, when combined with other elements, is used in the production of soap, glass, and fertilizers (= substances that help plants to grow)
Translations of “potassium”
in Spanish potasio…
in French potassium…
in German das Kalium…
in Chinese (Traditional) 鉀…
in Russian калий…
in Turkish potasyum…
in Chinese (Simplified) 钾…
in Polish potas…
(Definition of potassium from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of potassium?
Add Cambridge dictionaries to your browser to your website

Definitions of “potassium” in other dictionaries

Word of the Day


a young sheep, or the flesh of a young sheep eaten as meat

Word of the Day

The way we move (Verbs for walking and running)

by Kate Woodford,
March 25, 2015
​​​ This week we’re looking at interesting ways to describe the way that people move. Most of the verbs that we’ll be considering describe how fast or slow people move. Others describe the attitude or state of mind of the person walking or running. Some describe both. Starting with verbs for walking slowly,

Read More 

crossfit noun

March 23, 2015
high-intensity strength training Two women in strappy dresses discussed how much weight they could snatch

Read More