reagent

noun
re·​agent | \rē-ˈā-jənt \

Definition of reagent 

: a substance used (as in detecting or measuring a component, in preparing a product, or in developing photographs) because of its chemical or biological activity

Examples of reagent in a Sentence

Recent Examples on the Web

But the lab itself is palatial: two stories of white brick walls, industrial kitchen counters marked with dry-erase notes, shelves towering with glassware and reagents. Emily Baumgaertner, New York Times, "As D.I.Y. Gene Editing Gains Popularity, ‘Someone Is Going to Get Hurt’," 14 May 2018 But the process, which uses a series of toxic organic reagents, is typically slow and error-prone, limiting oligos to about 200 letters—a tiny fraction of the thousands of letters that make up most genes. Robert F. Service, Science | AAAS, "New technique could help scientists create a gene in just 1 day," 18 June 2018 But early into the rover’s mission, researchers discovered that carbon-rich chemical reagents were leaking out of some of SAM’s components, potentially contaminating nearby samples. Adam Mann, Scientific American, "Curiosity Rover Uncovers Long-Sought Organic Materials on Martian Surface," 7 June 2018 Some reserve their reagents exclusively for their own patients, unless public blood banks call directly and offer other scarce products in exchange for them. Rachelle Krygier, Washington Post, "Venezuela faces a terrible new crisis: A critical shortage of blood," 8 Mar. 2018 After the order is completed, software directs compressors and pumps to push chemical reagents into the rows of instruments, mixing the fluids and catalyzing the 100,000 reactions needed to create a single batch of kits. Megan Molteni, WIRED, "Biology Will Be the Next Great Computing Platform," 3 May 2018 The problem, according to doctors, is not so much a lack of donors as a shortage of the seven reagents that test donated blood for infections. Rachelle Krygier, Washington Post, "Venezuela faces a terrible new crisis: A critical shortage of blood," 8 Mar. 2018 The blockade also disrupted shipments to Qatar of lab reagents and equipment, which came mostly from UAE. Jocelyn Kaiser, Science | AAAS, "Qatar’s science suffers under Arab blockade," 18 Dec. 2017 And, ultimately, the firm’s ambition is to sell technological instruments and reagents to firms to help them with their work. Sy Mukherjee, Fortune, "Brainstorm Health: Free CRISPR Enzyme, Doug Jones and CHIP, Novartis Generics Unit," 13 Dec. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'reagent.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of reagent

1797, in the meaning defined above

History and Etymology for reagent

New Latin reagent-, reagens, present participle of reagere to react — more at react

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Time Traveler for reagent

The first known use of reagent was in 1797

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More Definitions for reagent

reagent

noun

English Language Learners Definition of reagent

chemistry : a substance that is used to test for the presence of another substance by causing a chemical reaction with it

reagent

noun
re·​agent | \rē-ˈā-jənt \

Medical Definition of reagent 

1 : a substance used (as in detecting or measuring a component, in preparing a product, or in developing photographs) because of its chemical or biological activity

More from Merriam-Webster on reagent

Britannica.com: Encyclopedia article about reagent

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