# photothermoelasticity

> English word · Noun

## Definitions
1. The changes in the optical properties of a dielectric when subject to heat-induced mechanical stress.

## Etymology
From photo- + thermoelasticity.

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