superfluidity
noun
superfluidity is spelled S-U-P-E-R-F-L-U-I-D-I-T-Y: 13 letters and 6 syllables. It appears about once in every 39 million words in written English, the 191,932nd most frequent word form (wordfreq, 2021 data). As a noun, superfluidity means “The frictionless flow that is characteristic of a fluid with zero viscosity, especially liquid helium at temperatures near absolute zero” (English Wiktionary, September 2026). The plural of superfluidity is superfluidities.
How many letters and syllables are in superfluidity?
| Letters | 13: S-U-P-E-R-F-L-U-I-D-I-T-Y |
|---|---|
| Syllables | 6 (from its American pronunciation) |
| In writing | about once in every 39 million words; the 191,932nd most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is superfluidity?
Superfluidity appears about once in every 39 million words in written English, the 191,932nd 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).
How do you pronounce superfluidity?
- US
Superfluidity has 6 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Flame,_not_lame-superfluidity.wav, Wikimedia Commons (author and licence on each file's page).
Forms of superfluidity
- superfluidities plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does superfluidity mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The frictionless flow that is characteristic of a fluid with zero viscosity, especially liquid helium at temperatures near absolute zero.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Superfluidity in Spanish, French, German and Portuguese
In the sense frictionless flow of a fluid:
| Language | Words |
|---|---|
| French | superfluidité |
| German | Suprafluidität |
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 superfluidity come from?
From super- + fluidity.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).