endosymbiosis
noun
endosymbiosis is a noun meaning “The condition of living within the body or cells of another organism; an instance of an organism so living” (English Wiktionary, September 2026). It is spelled E-N-D-O-S-Y-M-B-I-O-S-I-S, and it appears about once in every 37 million words in written English (wordfreq, 2021 data). The plural of endosymbiosis is endosymbioses.
What does endosymbiosis mean?
noun
- 1
The condition of living within the body or cells of another organism; an instance of an organism so living.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of endosymbiosis
- endosymbioses plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is endosymbiosis?
Endosymbiosis appears about once in every 37 million words in written English, the 187,122nd 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).
Endosymbiosis in Spanish, French, German and Portuguese
In the sense living within another organism:
| Language | Words |
|---|---|
| French | endosymbiose |
| German | Endosymbiose |
| Portuguese | endossimbiose |
| Spanish | endosimbiosis |
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 endosymbiosis come from?
From endo- + symbiosis.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).