# umstroke

> English word · Noun

## Definitions
1. The circumference or periphery of a circle.
2. A boundary line, especially one at the outermost limit; an extreme edge.

## Etymology
From um- + stroke.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/umstroke