ferrofluid
noun
ferrofluid is a noun meaning “A fluid, typically containing dispersed, nanoscale magnetic particles, designed to be magnetised such that its flow can be controlled by a magnet” (English Wiktionary, September 2026). It is spelled F-E-R-R-O-F-L-U-I-D, and it appears about once in every 27 million words in written English (wordfreq, 2021 data). The plural of ferrofluid is ferrofluids.
What does ferrofluid mean?
noun
- 1
A fluid, typically containing dispersed, nanoscale magnetic particles, designed to be magnetised such that its flow can be controlled by a magnet
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you pronounce ferrofluid?
- US
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Flame,_not_lame-ferrofluid.wav, Wikimedia Commons (author and licence on each file's page).
Forms of ferrofluid
- ferrofluids plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is ferrofluid?
Ferrofluid 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).
Where does ferrofluid come from?
From ferro- + fluid.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).