teratogen
noun
teratogen is spelled T-E-R-A-T-O-G-E-N: 9 letters. It appears about once in every 63 million words in written English, the 249,463rd most frequent word form (wordfreq, 2021 data). As a noun, teratogen means “Any agent or substance which can cause malformation of an embryo or birth defects” (English Wiktionary, September 2026). The plural of teratogen is teratogens.
How many letters and syllables are in teratogen?
| Letters | 9: T-E-R-A-T-O-G-E-N |
|---|---|
| In writing | about once in every 63 million words; the 249,463rd 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 teratogen?
Teratogen appears about once in every 63 million words in written English, the 249,463rd 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).
Forms of teratogen
- teratogens plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does teratogen mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
Any agent or substance which can cause malformation of an embryo or birth defects.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Teratogen in Spanish, French, German and Portuguese
In the sense agent or substance which can cause malformation:
| Language | Words |
|---|---|
| French | tératogène |
| Spanish | teratógeno |
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 teratogen come from?
From terato- + -gen.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).