First Known Use: 1797
Dictionary
reagent
noun re·agent \rē-ˈā-jənt\
chemistry : a substance that is used to test for the presence of another substance by causing a chemical reaction with it
Full 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
See reagent defined for English-language learners
ADVERTISEMENT
Origin of REAGENT
New Latin reagent-, reagens, present participle of reagere to react — more at react
Medical Dictionary
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
2
: reactor 1b
Learn More About REAGENT
Browse
Next Word in the Dictionary: reaggregatePrevious Word in the Dictionary: reagencyAll Words Near: reagent
ADVERTISEMENT
Seen & Heard
What made you want to look up reagent? Please tell us where you read or heard it (including the quote, if possible).