English · Science & Technology
catalyst
/ˈkæt.ə.lɪst/
[/ˈkæt.ə.lɪst/]
agent of change
Advancednoun
Definition
Something that causes or speeds up an important change or event without itself being consumed.
Example
The protest became a catalyst for sweeping reforms across the entire education system.
The protest became a catalyst for sweeping reforms across the entire education system.
Etymology
From Greek 'katalysis' (dissolution), from 'kata-' plus 'lyein' (to loosen).
How & Where It’s Used
Originated in chemistry; now widely used figuratively for change.