# photometry

> English word · Noun · frequency rank #77,086

## Definitions
1. The measurement of various aspects of light, especially its intensity.
2. The measurement of the intensity and spectrum of light from stars.

## Etymology
From photo- + -metry.

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