calcium phosphate

noun

1. any of several phosphates of calcium occurring naturally in some rocks and in animal bones, used as a fertilizer and food additive as well as in baking powder and dentifrices.

calcium phosphate

noun

1. the insoluble nonacid calcium salt of orthophosphoric acid (phosphoric(V) acid): it occurs in bones and is the main constituent of bone ash. Formula: Ca 3 (PO 4 ) 2

2. any calcium salt of a phosphoric acid. Calcium phosphates are found in many rocks and used esp in fertilizers

calcium phosphate

1. Any of three powdery phosphates of calcium:

2. A colorless powder used in baking powders, as a plant food, as a plastic stabilizer, and in glass. Calcium phosphate is deliquescent, and will dissolve in the water it absorbs from the atmosphere if it is not kept in a closed container. Chemical formula: Ca(H ₂ PO ₄ ) ₂ .

3. A white crystalline powder used as an animal food, as a plastic stabilizer, and in glass and toothpaste. Chemical formula: CaHPO ₄ .

4. A white powder that is used in ceramics, rubber, fertilizers, and for various purposes in the food industry. Chemical formula: Ca ₃ (PO ₄ ) ₂ .

Word History and Origins

Origin of calcium phosphate¹

First recorded in 1865–70

Example Sentences

Last week, the FDA approved three natural color additives — calcium phosphate, Galdieria extract blue and butterfly pea flower extract — to replace them.

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The FDA is instead encouraging the use of so-called natural food dyes such as gardenia blue and calcium phosphate.

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Moreover, Ctdnep1 knockdown also led to increased absorption of calcium phosphate, suggestive of the suppressive role of Ctdnep1 in bone resorption.

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"The skin of the frogs is replicated in the mineral calcium phosphate, which helped it survive for millions of years."

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In most lakes the dissolved phosphate quickly combines with calcium to form calcium phosphate, the insoluble material that makes up our tooth enamel.

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