auxin
noun
auxin is spelled A-U-X-I-N: 5 letters. It appears about once in every 7 million words in written English, the 76,798th most frequent word form (wordfreq, 2021 data). As a noun, auxin means “A class of plant growth substance (often called phytohormones or plant hormones) which play an essential role in coordination of many growth and…” (English Wiktionary, September 2026). The plural of auxin is auxins.
How many letters and syllables are in auxin?
| Letters | 5: A-U-X-I-N |
|---|---|
| In writing | about once in every 7 million words; the 76,798th 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 auxin?
Auxin appears about once in every 7 million words in written English, the 76,798th 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 auxin?
- US
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Wodencafe-auxin.wav, Wikimedia Commons (author and licence on each file's page).
Forms of auxin
- auxins plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does auxin mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A class of plant growth substance (often called phytohormones or plant hormones) which play an essential role in coordination of many growth and behavioral processes in the plant life cycle.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Auxin in Spanish, French, German and Portuguese
In the sense class of plant growth hormones:
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 auxin come from?
From Ancient Greek αὐξάνω (auxánō, “to grow”) + English -in.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).