# phototransparency

> English word · Noun

## Definitions
1. A photographic slide.
2. The optical transparency of an object, but especially that of tissue and bone to X-rays.

## Etymology
From photo- + transparency.

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