polyunsaturated fat
noun🔊/ˌpɒliʌnˌsætʃəreɪtɪd ˈfæt/
🔊/ˌpɑːliʌnˌsætʃəreɪtɪd ˈfæt/
[countable, uncountable]a type of fat found, for example, in seeds and vegetable oils, which does not encourage the harmful development of cholesterol 多不饱和脂肪（存在于种子和植物油等中，不促进胆固醇的有害增长） foods that are high in polyunsaturated fats 富含多不饱和脂肪的食物