mesothelium
noun
mesothelium is spelled M-E-S-O-T-H-E-L-I-U-M: 11 letters. It appears about once in every 74 million words in written English, the 272,462nd most frequent word form (wordfreq, 2021 data). As a noun, mesothelium means “A membrane of flat epithelial cells that lines the body cavity of embryos and forms the squamous cells of the peritoneum, pericardium, and pleura” (English Wiktionary, September 2026). The plural of mesothelium is mesothelia.
How many letters and syllables are in mesothelium?
| Letters | 11: M-E-S-O-T-H-E-L-I-U-M |
|---|---|
| In writing | about once in every 74 million words; the 272,462nd 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 mesothelium?
Mesothelium appears about once in every 74 million words in written English, the 272,462nd 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 mesothelium
- mesothelia plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does mesothelium mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A membrane of flat epithelial cells that lines the body cavity of embryos and forms the squamous cells of the peritoneum, pericardium, and pleura
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does mesothelium come from?
From meso- + -thelium.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).