- Any of a small grouping of metallic elements, specifically calcium, strontium, magnesium, and barium, but typically including beryllium and radium. Also called alkaline-earth.
- Alternative spelling of alkaline earth steel.
- the bivalent metals of group II regarding the periodic table (calcium or strontium or barium or magnesium or beryllium)
Hypernym for "alkaline-earth metal"
- metallic element
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