# nonblocker

> English word · Noun

## Definitions
1. A subset of vertices in an undirected graph, all of which are adjacent to vertices outside of the subset

## Etymology
From non- + blocker.

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