# thermochromy

> English word · Noun

## Definitions
1. The property possessed by heat of being composed, like light, of rays of different degrees of refrangibility, which are unequal in rate or degree of transmission through diathermic substances.

## Etymology
From thermo- + Ancient Greek χρῶμα (khrôma, “colour”).

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