monounsaturated
adjective chemistry, food & drink specialized uk/ˌmɒn.əʊ.ʌnˈsætʃ.ər.eɪ.tɪd/ us/ˌmɑː.noʊ.ʌnˈsætʃ.ə.reɪ.t̬ɪd/
单不饱和的（其化学结构只有一个双键，据信单不饱和油脂，如橄榄油，比饱和油脂更健康）
with a chemical structure that contains one double bond. Monounsaturated fat, for example olive oil, is thought to be healthier than saturated fat.
Compare: polyunsaturatedsaturated fatunsaturated