fluidizePronunciation: /ˈfluːɪdʌɪz/ (also fluidise)Definition of fluidize verb [with object] technical give (a finely divided solid) the characteristics of a fluid by passing a gas upwards through it: the massive kimberlite was fluidized and carried upwards at low temperaturesDerivatives fluidizationPronunciation: /-ˈzeɪʃ(ə)n/ noun fluidize in other Oxford dictionaries Definition of fluidize in the US English dictionary