alkaline earth metal

noun

Definition of alkaline earth metal

: any of the divalent strongly basic metals of group II of the periodic table comprising beryllium, magnesium, calcium, strontium, barium, and radium

— called also alkaline earth

— see Periodic Table

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alkaline earth metal

noun

: any of the bivalent strongly basic metals of group II of the periodic table comprising beryllium, magnesium, calcium, strontium, barium, and radium