# thyratron

> English word · Noun · IPA /ˈθaɪ.ɹəˌtɹɒn/

## Definitions
1. Any of several types of thermoelectric valve once used as a high-speed switch

## Etymology
From Ancient Greek θύρα (thúra, “door”) + -tron. Originally a trademark, registered 17 June 1930 by the General Electric Company (United States Patent Office, Registration No. 271-660).

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