poly·un·sat·ur·ated fatBrE /ˌpɒliʌnˌsætʃəreɪtɪd ˈfæt/ 🔊NAmE /ˌpɑːliʌnˌsætʃəreɪtɪd ˈfæt/ 🔊 noun [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 ➡ see also monounsaturated fat, saturated fat, trans-fatty acid, unsaturated fat ▸ poly·un·sat·ur·ates BrE /ˌpɒliʌnˈsætʃərəts/ 🔊NAmE /ˌpɑːliʌnˈsætʃərəts/ 🔊 noun [plural] ◆foods that are high in polyunsaturates (= polyunsaturated fats ) 富含多不饱和脂肪的食物