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(inorganic chemistry) The ammonium salt of nitric acid, NH₄NO₃; it is used in fertilizers and explosives (notoriously in improvised explosive devices, though its main importance is as an explosive in its own right and in mixtures such as amatol and ANFO).

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ammonium nitrate

The farmer applied ammonium nitrate to the fields in early spring to boost crop yields.

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The farmer applied ammonium nitrate to the fields in early spring to boost crop yields.

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