Definition of ferrofluid in English:

ferrofluid

noun

  • [often as modifier] A fluid containing a magnetic suspension.

    ‘ferrofluid cooling’
    • ‘Airlines use ferrofluids to help seal rotary valves.’
    • ‘While ‘Lost’ and ‘Icelandic Rift’ contain the not-to-be missed natural wonder of magnetic ferrofluid.’
    • ‘We live in a world of atomic clocks, of ten dollar lasers you can hold in your hand, of supersonic passenger planes, space stations and ‘ferrofluid.’’

Pronunciation:

ferrofluid

/ˈfɛrəʊfluːɪd/