carbonyl
/ˈkɑː(ɹ)bənɪl/noun
carbonyl is spelled C-A-R-B-O-N-Y-L: 8 letters. It appears about once in every 3 million words in written English, the 49,368th most frequent word form (wordfreq, 2021 data). As a noun, carbonyl means “A divalent functional group, (-CO-), characteristic of aldehydes, ketones, carboxylic acids, amides, carboxylic acid anhydrides, carbonyl halides…” (English Wiktionary, September 2026). The plural of carbonyl is carbonyls.
How many letters and syllables are in carbonyl?
| Letters | 8: C-A-R-B-O-N-Y-L |
|---|---|
| In writing | about once in every 3 million words; the 49,368th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is carbonyl?
Carbonyl appears about once in every 3 million words in written English, the 49,368th 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).
How do you pronounce carbonyl?
- /ˈkɑː(ɹ)bənɪl/
- /ˈkɑː(ɹ)bənaɪl/
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-carbonyl.wav, LL-Q1860_(eng)-Tesco250-carbonyl.wav, Wikimedia Commons (author and licence on each file's page).
Forms of carbonyl
- carbonyls plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does carbonyl mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A divalent functional group, (-CO-), characteristic of aldehydes, ketones, carboxylic acids, amides, carboxylic acid anhydrides, carbonyl halides, esters and others.
- 2
Any compound of a metal with carbon monoxide, such as nickel carbonyl, Ni(CO)₄.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Carbonyl in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| German | Carbonyl , Carbonylverbindung |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does carbonyl come from?
From carbon + -yl.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).