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Definition of: phosphate
(fos′fāt) noun
1. Chem. A salt or ester of phosphoric acid. Phosphates, especially those of calcium, are necessary to the growth of plants, which absorb them in the form of soluble salts.
2. Agric. Any fertilizer valued for its phosphoric acid.
3. A beverage of carbonated water, variously flavored, containing small amounts of phosphoric acid. [<F]
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