# electrocatalyst

> English word · Noun

## Definitions
1. Any material, normally employed on the surface or an electrode, that catalyzes a half cell reaction.

## Etymology
From electro- + catalyst.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/electrocatalyst