# reagent

> English word · Noun · IPA /ɹiˈeɪ.d͡ʒənt/ · frequency rank #33,811

## Definitions
1. A compound or mixture of compounds used to treat or test materials, samples, other compounds or reactants in a laboratory or sometimes an industrial setting.

## Etymology
Possibly from Latin reagō. Compare with Norwegian Bokmål reagens. The sequence of act → action → agent → agency shows morphologic and semantic parallel, and apparent cognate relation, with react → reaction → reagent → reagency.

## Easily confused with
- **recent** (https://plainspell.com/en/vs/reagent-vs-recent)
- **regent** (https://plainspell.com/en/vs/reagent-vs-regent)
- **resent** (https://plainspell.com/en/vs/reagent-vs-resent)
- **repent** (https://plainspell.com/en/vs/reagent-vs-repent)
- **Reagan** (https://plainspell.com/en/vs/reagan-vs-reagent)

## Common misspellings (10)
`eragent`, `raegent`, `reaegnt`, `reagennt`, `reagentt`, `reagetn`, `reaggent`, `reagnet`, `regaent`, `rreagent`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/reagent