Dictionary

cyanuric acid

noun cy·an·uric acid \ˌsī-ə-ˈnr-ik-, -ˈnyr-\

Definition of CYANURIC ACID

:  a crystalline weak acid C3N3(OH)3 that yields cyanic acid when heated

Origin of CYANURIC ACID

cyan- + urea
First Known Use: 1838

cyanuric acid

noun cy·an·uric acid \ˌsī-ə-ˌn(y)r-ik-\   (Medical Dictionary)

Medical Definition of CYANURIC ACID

:  a crystalline weak acid C3H3N3O3 used especially in swimming pools to protect the available chlorine from dissipation by sunlight

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