magnesium.
The chemical element with an atomic number of 12. It is a light, easily flammable, silvery-white alkaline earth metal.
Meaning & usage
The chemical element with an atomic number of 12. It is a light, easily flammable, silvery-white alkaline earth metal.
The chemical element with an atomic number of 12. It is a light, easily flammable, silvery-white alkaline earth metal. An atom of this element.
Where this word comes from
From New Latin magnēsium, from Ancient Greek μαγνησία (magnēsía), after Μαγνησία (Magnēsía, “Magnesia”), a region in Thessaly. Coined by British chemist Humphry Davy, as a modification of his original suggestion, magnium.
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Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.