dif·fe·ren·tial1 /ˌdɪfəˈrenʃəl◂/ noun [countableC]1 DIFFERENT formal a difference between things, especially between the wages of people doing different types of jobs in the same industry or profession 差别;〔尤指同行業不同工作之間的〕工資級差pay/wage/salary differential 工資差别