peristome
noun
peristome is spelled P-E-R-I-S-T-O-M-E: 9 letters. It appears about once in every 13 million words in written English, the 107,757th most frequent word form (wordfreq, 2021 data). As a noun, peristome means “One or two rings of tooth-like appendages surrounding the opening of the capsule of many mosses” (English Wiktionary, September 2026). The plural of peristome is peristomes.
How many letters and syllables are in peristome?
| Letters | 9: P-E-R-I-S-T-O-M-E |
|---|---|
| In writing | about once in every 13 million words; the 107,757th 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 peristome?
Peristome appears about once in every 13 million words in written English, the 107,757th 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 peristome
- peristomes plural
- peristoma
- peristomium
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does peristome mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
One or two rings of tooth-like appendages surrounding the opening of the capsule of many mosses.
- 2
The parts of or surrounding the mouths of numerous invertebrates.
- 3
The lip, or edge of the aperture, of a spiral shell.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does peristome come from?
From peri- + -stome.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).