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English definition of “fluid ounce”

fluid ounce

noun [C]     (written abbreviation fl oz)
a unit for measuring liquid, equal to 0.0284 litres in the UK and 0.0296 litres in the USMeasurements of volumeGeneral words for size and amountInformal measurements of volumeArea, mass, weight and volume in general
(Definition of fluid ounce noun from the Cambridge Learner's Dictionary © Cambridge University Press)

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