catalyst

cat·a·lyst

noun \ˈka-tə-ləst\

Definition of CATALYST

1

: a substance that enables a chemical reaction to proceed at a usually faster rate or under different conditions (as at a lower temperature) than otherwise possible

2

: an agent that provokes or speeds significant change or action

Examples of CATALYST

1. The bombing attack was the catalyst for war.
2. She was proud to be a catalyst for reform in the government.

First Known Use of CATALYST

1902

Other Chemical Engineering Terms

alkali, cation, decant, hygroscopic, isotope, oxidize, slurry, solute, viscous