noun ·3 syllables ·Moderate ·College level

Definitions

Noun

1. 1
   The chemical element (symbol Ba) with an atomic number of 56. It is a soft, reactive, silvery alkaline earth metal. uncountable, usually
2. 2
   a soft silvery metallic element of the alkali earth group; found in barite wordnet
3. 3
   A single atom of this element. countable, usually
4. 4
   Barium sulphate suspension. uncountable, usually

Synonyms

All synonyms

atomic number 56babarytumgoldironlead

Example

More examples

"First, swallow one dose of barium."

Etymology

Coined by British chemist Humphry Davy in 1808, from baryta + -ium.

Related phrases

barium acetatebarium aluminatebarium arsenatebarium arsenitebarium azidebarium bromate-dihydratebarium bromate-monohydratebarium bromidebarium carbidebarium carbonatebarium chloratebarium chloride

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.