exobiology
noun
exobiology is spelled E-X-O-B-I-O-L-O-G-Y: 10 letters. It appears about once in every 31 million words in written English, the 169,822nd most frequent word form (wordfreq, 2021 data). As a noun, exobiology means “The branch of biology dealing with exolife: (putative or predicted) extraterrestrial lifeforms (those originating from planets other than Earth)” (English Wiktionary, September 2026). The plural of exobiology is exobiologies.
How many letters and syllables are in exobiology?
| Letters | 10: E-X-O-B-I-O-L-O-G-Y |
|---|---|
| In writing | about once in every 31 million words; the 169,822nd 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 exobiology?
Exobiology appears about once in every 31 million words in written English, the 169,822nd 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 exobiology?
- US
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Wodencafe-exobiology.wav, Wikimedia Commons (author and licence on each file's page).
Forms of exobiology
- exobiologies plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does exobiology mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The branch of biology dealing with exolife: (putative or predicted) extraterrestrial lifeforms (those originating from planets other than Earth).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Exobiology in Spanish, French, German and Portuguese
In the sense biology dealing with extraterrestrial lifeforms:
| Language | Words |
|---|---|
| French | exobiologie |
| German | Exobiologie |
| Portuguese | exobiologia |
| Spanish | exobiología |
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 exobiology come from?
From exo- + biology, coined by American molecular biologist Joshua Lederberg.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).