polysomnography
noun
polysomnography is spelled P-O-L-Y-S-O-M-N-O-G-R-A-P-H-Y: 15 letters. It appears about once in every 27 million words in written English, the 157,761st most frequent word form (wordfreq, 2021 data). As a noun, polysomnography means “A multiparameter recording of brain waves used in the study of sleep” (English Wiktionary, September 2026). The plural of polysomnography is polysomnographies.
How many letters and syllables are in polysomnography?
| Letters | 15: P-O-L-Y-S-O-M-N-O-G-R-A-P-H-Y |
|---|---|
| In writing | about once in every 27 million words; the 157,761st 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 polysomnography?
Polysomnography appears about once in every 27 million words in written English, the 157,761st 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 polysomnography
- polysomnographies plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does polysomnography mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A multiparameter recording of brain waves used in the study of sleep
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Polysomnography in Spanish, French, German and Portuguese
In the sense Translations:
| Language | Words |
|---|---|
| Spanish | polisomnografía |
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 polysomnography come from?
From poly- + somnography.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).