macromineral
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macroelement
[mak″ro-el´ĕ-ment]a chemical element that has a minimal daily requirement greater than 100 mg; calcium, phosphorus, magnesium, potassium, sodium, and chloride are macroelements.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.