Ba and Metallic element

Ba noun - A soft silvery metallic element of the alkali earth group; found in barite.

Metallic element and ba are semantically related. In some cases you can use "Metallic element" instead a noun "Ba".

Metallic element noun - Any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc..

Ba and metallic element are semantically related. Sometimes you can replace term "Ba" with "Metallic element", this terms are similar.