Definition of phosphate
1a (1) : a salt or ester of a phosphoric acid (2) : the trivalent anion PO43− derived from phosphoric acid H3PO4b : an organic compound of phosphoric acid in which the acid group is bound to nitrogen or a carboxyl group in a way that permits useful energy to be released (as in metabolism)
2 : an effervescent drink of carbonated water with a small amount of phosphoric acid flavored with fruit syrup
3 : a phosphatic material used for fertilizers
Recent Examples of phosphate from the Web
One costly consideration is that Milwaukee adds a phosphate compound to its drinking water to reduce leaching of toxic lead from household pipes.
Feeding once a year in summer with a fertilizer high in phosphate is enough to keep the bushes thriving.
Twin Hill acknowledged that one of the bolts of fabric used in the uniforms was contaminated with tributyl phosphate, a sealant which can cause skin irritation.
That means sodium — salt — potassium, calcium, chlorine, phosphate and magnesium.
Proteins incorporating phosphotyrosine are made post-translationally, by attaching a phosphate group to tyrosine.
Ma’aden, a mining firm, announced a similar potential expansion with Mosaic in the phosphate business.
When these pests are too numerous, try a natural snail and slug bait containing iron phosphate found at garden centers.
The government and its allies have restored government control over mineral and oil resources, including the phosphate mines in Khneifes, once controlled by IS.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'phosphate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of phosphate
French, from acide phosphorique phosphoric acid
First Known Use: 1788See Words from the same year
PHOSPHATE Defined for English Language Learners
Definition of phosphate for English Language Learners
chemistry : a salt or compound that has phosphorus in it and that is used especially in products (called fertilizers) that help plants grow
Medical Definition of phosphate
Seen and Heard
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