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any salt or ester of phosphoric acid. adj., adj phosphat´ic.

Phosphates are widely distributed in the body, the largest amounts being in the bones and teeth. They are continually excreted in the urine and feces and must be replaced in the diet. Inorganic phosphates function as buffer salts to maintain the acid-base balance in blood, saliva, urine, and other body fluids. The principal phosphates in this buffer system are monosodium and disodium phosphate. Organic phosphates, in particular adenosine triphosphate (ATP), take part in a series of reversible reactions involving phosphoric acid, lactic acid, glycogen, and other substances, which furnish the energy expended in muscle contraction. This is thought to occur through the hydrolysis of the so-called high-energy phosphate bond present in ATP, phosphocreatine, and certain other body compounds.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

phos·phate (P),

A salt or ester of phosphoric acid. For individual phosphates not listed here, see under the name of the base.
Farlex Partner Medical Dictionary © Farlex 2012


1. A salt or ester (especially inorganic) of phosphoric acid.
2. The trivalent ion, PO43-.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


any salt or ester of any PHOSPHORIC ACID.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005


An organic compound necessary for mineralization of bone and other key cellular processes.
Mentioned in: Hyperparathyroidism
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The ministry dismissed both as emotional speculations, saying that we do not know at this point how, in what manner, and at what price phosphate rock can be extracted from the ground using modern technology.
The kidneys play a large role in regulating the excretion of phosphate from the body.
(Phosphate is in increasingly strong global demand.
The radioactivity in WLP residue is comparable to those found in Phosphate Rock and phosphate fertilisers.
This drop is due to the structural difficulties facing the SNCFT since 2011, caused by the delay recorded at the level of the launch of the necessary investments for renewing the locomotive and wagons fleet and the fitting-out of railway lines between the three main phosphate cities (Gafsa, Gabes and Sfax).
Normally, kidneys control how much phosphate there is in the blood, and they help filter out the excess phosphate in the urine.
"With today's award and the launch of Phosphate 3, we are building on our existing world-class phosphate business, ensuring that the phosphate resources of the Kingdom are developed efficiently, and delivering a meaningful contribution to the Saudi Vision 2030 goal of economic diversification for the kingdom," he added.
However, an increase in dietary phosphate also increases the likelihood of developing or even dying from arteriosclerosis or a cardiovascular disease in healthy people.
31 January 2018 - Caymen Islands-based phosphate producer Itafos (TSX Venture: IFOS) has closed the acquisition of Idaho, US-based Conda Phosphate Operations from Canada-based agricultural products and services provider Agrium Inc.
Despite its importance, the accumulation of phosphate can produce deleterious effects.