reactant

[ ree-ak-tuh nt ]
/ riˈæk tənt /
SEE SYNONYMS FOR reactant ON THESAURUS.COM

noun

a person or thing that reacts.
Also called interactant. Chemistry. any substance that undergoes a chemical change in a given reaction.

Origin of reactant

First recorded in 1925–30; react + -ant

Words nearby reactant

reach-me-down, reaching jib, reacquire, react, reactance, reactant, reaction, reaction chamber, reaction engine, reaction formation, reaction of degeneration

Words related to reactant

impetus, motivation, incentive, stimulant, incitement, reactionary, spur, goad, incendiary, agitator, impulse, incitation, synergist, adjuvant, enzyme, yeast, leaven, ferment

Example sentences from the Web for reactant

British Dictionary definitions for reactant

reactant
/ (rɪˈæktənt) /

noun

a substance that participates in a chemical reaction, esp a substance that is present at the start of the reaction Compare product (def. 4)

Medical definitions for reactant

reactant
[ rē-ăk′tənt ]

n.

A substance participating in a chemical reaction, especially a directly reacting substance present at the start of the reaction.

Scientific definitions for reactant

reactant
[ rē-ăk′tənt ]

A substance participating in a chemical reaction, especially one present at the start of the reaction.