reagent

play
noun re·agent \rē-ˈā-jənt\

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

Origin and Etymology of reagent

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


First Known Use: 1797

Other Chemical Engineering Terms


REAGENT Defined for English Language Learners

reagent

play
noun re·agent \rē-ˈā-jənt\

Definition of reagent for English Language Learners

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


Medical Dictionary

reagent

play
noun re·agent \rē-ˈā-jənt\

Medical Definition of reagent

  1. 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. 2:  reactor 1b


Learn More about reagent


Seen and Heard

What made you want to look up reagent? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

clothing or garments

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • fox-in-front-of-cabin-in-winter
  • The month of December comes from a Latin word that referred to which month of the year?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ