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English definition of “trans fat”

trans fat

noun [C or U]     /ˈtrænz.fæt/ (also trans-fatty acid)
a type of fat that is produced by hydrogenation (= when vegetable oil is made into solid fat ) and is used in margarine , fried foods , etc.: An excess of trans fats in the diet can cause high cholesterol levels .Fats and oils in food and cooking
(Definition of trans fat noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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