# tripcock

> English word · Noun

## Definitions
1. A train-mounted safety device which interacts with a trackside device to stop a train automatically if it passes a signal at danger (showing a red light).

## Etymology
From trip + cock.

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