nitrate

ni·trate

noun \ˈnī-ˌtrāt, -trət\

Definition of NITRATE

1

: a salt or ester of nitric acid

2

: sodium nitrate or potassium nitrate used as a fertilizer

Origin of NITRATE

French, from nitrique

First Known Use: 1788

Rhymes with NITRATE

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ni·trate

noun \ˈnī-ˌtrāt, -trət\   (Medical Dictionary)

Medical Definition of NITRATE

: a salt or ester of nitric acid

nitrate

noun    (Concise Encyclopedia)

Any salt or ester of nitric acid (HNO). The salts are inorganic compounds with ionic bonds, containing the nitrate ion (NO) and any cation. Many, particularly ammonium nitrate, are used as agricultural fertilizers (see saltpeter). Their runoff in surface water and groundwater can cause serious illness in humans. The esters are organic compounds with covalent bonds, having the structure RONO, in which R represents an organic combining group such as methyl, ethyl, or phenyl.