alkaline earth
noun Chemistry.
any of the oxides of barium, radium, strontium, calcium, and, sometimes, magnesium.
Origin of alkaline earth
First recorded in 1810–20
Words nearby alkaline earth
alkalic,
alkalify,
alkalimeter,
alkalimetry,
alkaline,
alkaline earth,
alkaline phosphatase,
alkaline soil,
alkaline tide,
alkaline-ash diet,
alkaline-earth metal
Example sentences from the Web for alkaline earth
British Dictionary definitions for alkaline earth
alkaline earth
noun
Also called: alkaline earth metal, alkaline earth element
any of the divalent electropositive metals beryllium, magnesium, calcium, strontium, barium, and radium, belonging to group 2A of the periodic table
an oxide of one of the alkaline earth metals
Medical definitions for alkaline earth
alkaline earth
n.
The oxides of calcium, strontium, radium, and barium, and sometimes magnesium.