thione
noun
thione is a noun meaning “A ketone-like compound in which the oxygen is replaced by sulfur, having the general formula R₂C=S” (English Wiktionary, September 2026). It is spelled T-H-I-O-N-E, and it appears about once in every 89 million words in written English (wordfreq, 2021 data). The plural of thione is thiones.
What does thione mean?
noun
- 1
A ketone-like compound in which the oxygen is replaced by sulfur, having the general formula R₂C=S
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of thione
- thiones plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is thione?
Thione appears about once in every 89 million words in written English, the 301,415th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Where does thione come from?
From thio- + -one.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).