nitrate

noun

ni·​trate ˈnī-ˌtrāt 

-trət

plural nitrates

1

: a salt or ester of nitric acid

2

: sodium nitrate or potassium nitrate used as a fertilizer

3

: any of several nitric-acid esters of cellulose : nitrocellulose

especially : a product (such as celluloid film) made from cellulose nitrate

In the case of the Clark Gable Mutiny on the Bounty (1935), the nitrate original was destroyed before anyone noticed the transferred soundtrack was out of sync.

—Roy Hemming

Examples of nitrate in a Sentence

Recent Examples on the Web

They are known to interact with nitrate medications, including nitroglycerin used by some people with heart disease. — Andrew Yockey, Fortune, 15 Oct. 2026

Researchers next assess environmental factors, including nitrate levels. — CBS News, 14 Oct. 2026

Chemical fertilizers and animal waste contain nitrates and phosphorus that can get washed with rain or snowmelt into the state’s web of rivers. — ABC News, 14 Oct. 2026

Nebraska’s 2026 Water Quality and Quantity Task Force identified the need to reduce nitrate concentrations in groundwater and protect our water resources for the long term. — Jesse E. Stanley, Washington Post, 9 Oct. 2026

Word History

Etymology

French, from nitrique

First Known Use

1788, in the meaning defined at sense 1

Phrases Containing nitrate

• ammonium nitrate
• amyl nitrate
• cellulose nitrate
• nitrate of soda
• peroxyacetyl nitrate
• potassium nitrate
• silver nitrate
• sodium nitrate

Rhymes for nitrate

• abate
• airfreight
• await
• baseplate
• berate
• birthdate
• birthrate
• bookplate
• borate
• breastplate
• bromate
• casemate

Kids Definition

nitrate

noun

ni·​trate ˈnī-ˌtrāt 

-trət

1

: a chemical compound formed by the reaction of nitric acid with another substance

2

: nitrate of sodium or potassium used as a fertilizer

Medical Definition

nitrate

noun

ni·​trate ˈnī-ˌtrāt, -trət 

: a salt or ester of nitric acid