# vicinal

> English word · Adjective · IPA /ˈvɪsɪnəl/

## Definitions
1. Of or pertaining to a neighborhood; neighboring.
2. Describing identical atoms or groups attached to nearby (especially adjacent) atoms in a molecule.
3. Describing subordinate planes on a crystal, which are very near to the fundamental planes in angles, and sometimes take their place.

## Etymology
From Latin vīcīnālis.

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