# photovisual

> English word · Adjective

## Definitions
1. Relating to the magnitude of a star as measured by the size of its image on an isochromatic photographic emulsion.
2. Of certain achromatic lenses, having the same focus for the actinic and for the brightest of the visual rays.

## Etymology
From photo- + visual.

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