# semivacancy

> English word · Noun

## Definitions
1. A vacancy defect in which two adjacent lattice sites are unoccupied and an atom occupies the interstitial site between the two vacant sites.

## Etymology
From semi- + vacancy.

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