# thio-

> English word · Prefix · IPA /θʌɪ.ə(ʊ)/

## Definitions
1. containing sulfur, especially a compound in which oxygen has been replaced by this element

## Etymology
From Ancient Greek θεῖον (theîon, “sulfur”).

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