retroperitoneal
adjective
retroperitoneal is spelled R-E-T-R-O-P-E-R-I-T-O-N-E-A-L: 15 letters. It appears about once in every 17 million words in written English, the 122,704th most frequent word form (wordfreq, 2021 data). As an adjective, retroperitoneal means “Located behind the peritoneum” (English Wiktionary, September 2026).
How many letters and syllables are in retroperitoneal?
| Letters | 15: R-E-T-R-O-P-E-R-I-T-O-N-E-A-L |
|---|---|
| In writing | about once in every 17 million words; the 122,704th 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 retroperitoneal?
Retroperitoneal appears about once in every 17 million words in written English, the 122,704th 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 retroperitoneal
- more retroperitoneal comparative
- most retroperitoneal superlative
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does retroperitoneal mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Located behind the peritoneum.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Retroperitoneal in Spanish, French, German and Portuguese
In the sense located behind the peritoneum:
| Language | Words |
|---|---|
| French | rétropéritonéal |
| Spanish | retroperitoneal |
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 retroperitoneal come from?
From retro- + peritoneal.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).