# thione

> English word · Noun

## Definitions
1. A ketone-like compound in which the oxygen is replaced by sulfur, having the general formula R₂C=S

## Etymology
From thio- + -one.

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