barium
The chemical element (symbol Ba) with an atomic number of 56. It is a soft, reactive, silvery alkaline earth metal.
Other meanings
A single atom of this element.
Barium sulphate suspension.
A kind of
- metallic element
Where this comes from
This definition is adapted from “barium” on Wiktionary, by its contributors; related-word lists use Open English WordNet (CC BY 4.0, based on Princeton WordNet), published under CC BY-SA 4.0. This page is published under the same licence.