reagent

[ ree-ey-juhnt ]

noun

, Chemistry.

1. a substance that, because of the reactions it causes, is used in analysis and synthesis.

reagent

/ riːˈeɪdʒənt /

noun

1. a substance for use in a chemical reaction, esp for use in chemical synthesis and analysis

reagent

/ rē-ā′jənt /

1. A substance participating in a chemical reaction, especially one used to detect, measure, or produce another substance.
2. Compare agent

Word History and Origins

Origin of reagent¹

1790–1800; re(act) + agent; act

Example Sentences

These include more efficiently using reagents—a big contributor to costs—with their spinning, open-flow-cell design and involving AI early.

From Singularity Hub 

Nature reported that in early trials, faulty reagents resulted in dosing miscalculations, causing early participants to receive doses that were approximately one-fifth the planned amount.

From Popular-Science

Having experienced shortages of everything from life-saving personal protective equipment to swabs and reagents for testing during the pandemic, the United States clearly needs to focus on medical supplies and key pharmaceutical ingredients.

From MIT Technology Review

In the earliest days, well before at-home tests were available, the country grappled with swab and reagent shortages that severely limited the number of lab-based tests it could administer.

From Time

In addition to restricting personal or business travel, these bans also restrict the flow of reagents and supplies critical for tracking the spread of the virus and treating people in a potential hot zone.

From Time

Barium nitrate, added to a solution acidified with nitric acid, is the group reagent.

From Project Gutenberg

Silver nitrate, added to a solution acidified with nitric acid, is the group reagent.

From Project Gutenberg

Barium nitrate, used with a neutral solution, is the group reagent in the absence of metal ions other than the alkali metal ions.

From Project Gutenberg

Do this by boiling some of the sample in water, and when cool adding a drop or two of iodin reagent.

From Project Gutenberg

When a precipitate forms with the above reagent, it should settle immediately and leave a clear and almost colorless liquid.

From Project Gutenberg