# fadometer

> English word · Noun

## Definitions
1. A device that irradiates materials in order to test the degree to which they fade from exposure to sunlight.

## Etymology
From fade + -ometer.

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