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Definition of Barium
1. Noun. A soft silvery metallic element of the alkali earth group; found in barite.
Generic synonyms: Metal, Metallic Element
Specialized synonyms: Baryta
Substance meronyms: Barite, Barium Sulphate, Barytes, Heavy Spar
Derivative terms: Baric
Definition of Barium
1. n. One of the elements, belonging to the alkaline earth group; a metal having a silver-white color, and melting at a very high temperature. It is difficult to obtain the pure metal, from the facility with which it becomes oxidized in the air. Atomic weight, 137. Symbol, Ba. Its oxide called baryta.
Definition of Barium
1. a metallic element [n -S]
Medical Definition of Barium
1.