# misrun

> English word · Noun

## Definitions
1. A casting that does not completely fill the mold, leaving unfilled spaces.
2. A failed test of oil or gas drilling equipment.

## Etymology
From mis- + run.

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