# pliotron

> English word · Noun · IPA /ˈplaɪ.ə(ʊ)ˌtɹɒn/

## Definitions
1. A hard vacuum triode.

## Etymology
Originally a trademark of General Electric, who began producing them in 1915.

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