xenobiology
/ˈziːnoʊbaɪˌɑːləd͡ʒi/noun
xenobiology is spelled X-E-N-O-B-I-O-L-O-G-Y: 11 letters. It appears about once in every 89 million words in written English, the 301,415th most frequent word form (wordfreq, 2021 data). As a noun, xenobiology means “The speculative biology of extraterrestrial life forms” (English Wiktionary, September 2026).
How many letters and syllables are in xenobiology?
| Letters | 11: X-E-N-O-B-I-O-L-O-G-Y |
|---|---|
| In writing | about once in every 89 million words; the 301,415th 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 xenobiology?
Xenobiology 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).
How do you pronounce xenobiology?
- UK /ˌzɛnəʊbaɪˈɒləd͡ʒi/
- UK /ˌziːnəʊbaɪˈɒləd͡ʒi/
- US /ˈziːnoʊbaɪˌɑːləd͡ʒi/
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-us-xenobiology.ogg, En-us-xenobiology-2.ogg, Wikimedia Commons (author and licence on each file's page).
What does xenobiology mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The speculative biology of extraterrestrial life forms.
- 2
The biology of life forms with nonstandard biochemistry or codes, including synthetic life and mirror life.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Xenobiology in Spanish, French, German and Portuguese
In the sense speculative biology of extraterrestrial life:
| Language | Words |
|---|---|
| French | xénobiologie |
| German | Xenobiologie |
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 xenobiology come from?
From xeno- + biology. Sometimes attributed to science-fiction author Robert A. Heinlein.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).