heterocyclic
adjective, noun
heterocyclic is spelled H-E-T-E-R-O-C-Y-C-L-I-C: 12 letters. It appears about once in every 6 million words in written English, the 72,332nd most frequent word form (wordfreq, 2021 data). As an adjective, heterocyclic means “Having atoms of two or more different elements in at least one of its rings” (English Wiktionary, September 2026).
How many letters and syllables are in heterocyclic?
| Letters | 12: H-E-T-E-R-O-C-Y-C-L-I-C |
|---|---|
| In writing | about once in every 6 million words; the 72,332nd 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 heterocyclic?
Heterocyclic appears about once in every 6 million words in written English, the 72,332nd 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 heterocyclic?
- US
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Flame,_not_lame-heterocyclic.wav, Wikimedia Commons (author and licence on each file's page).
Forms of heterocyclic
- heterocyclics plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does heterocyclic mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Having atoms of two or more different elements in at least one of its rings.
- 2
Having one or more atoms other than carbon in at least one of its rings.
noun
- 1
A heterocycle
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Heterocyclic in Spanish, French, German and Portuguese
In the sense of cyclic compounds: containing one or more atoms other than carbon:
| Language | Words |
|---|---|
| German | heterozyklisch |
| Portuguese | heterocíclico |
| Spanish | heterocíclico |
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.