# photocycloaddition

> English word · Noun

## Definitions
1. Any intermolecular photochemical process leading to a ring systems by formation of two new single bonds

## Etymology
From photo- + cycloaddition.

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